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Said when becoming aware of hostiles, or people who may be hostile, as part of a contact report. "Soft contact" indicates that they are not aware of you, "Hard contact" indicates that they are.
Say again? / Resend
Used to request that the last speaker repeat the most recent thing they've said.
Stepped On
A command or question could not be heard due to other communications or noise ("Say again, you were stepped on.")
Copy / Heard
Used to indicate that a communication was heard and understood. A "neutral acknowledgement".
Roger / Wilco / Rog / Affirmative / Affirm / Acknowledged
These are all synonyms for "positive acknowledgement"; the communication was understood, a command is intended to be followed, a positive answer to a question, etc.
A "negative acknowledgement". The communication was understood, but the answer is 'no'.
Stand by
An element should wait until further notice
Eyes On / Seen / Heard
A referenced location or object has been seen or heard by the speaker.
Break, break!
Used to indicate other speakers should clear the radio
Used to indicate a continuation of a radio message through a pause (similar to a paragraph break)
Used to alert nearby friendlies that a grenade has landed nearby.
Bad Frag!
Same as above, but said when it was a misjudged throw by a friendly
Short for "Enemy Infantry"
To become visible over top a terrain feature
To be visible due to contrast with the sky


Up / Down / Dead
Used to indicate the general capability of a unit. A person is "up" when they are conscious and capable of general tasks such as movement or firing; similar for vehicles.
Bearing / Azimuth
The relative compass direction from one point to another, almost always in degrees
The relative direction of movement
Frag Out
Said before throwing an explosive grenade. "Grenade!" should be reserved for alerting people that a grenade has landed nearby
Frag In
Said before throwing an explosive grenade into a structure or container
Smoke out
Said before throwing a smoke grenade
"Magazine!" / "Box!" / "Belt!"
When said alone, these are synonyms for "Reloading!"
Green / Yellow / Red / Black
Indicates a rough status of supplies, i.e. ammo, medical: "Good", "Could use more", "Will need more", "Barely have any".


Red / Green / Blue / Yellow / White
May be used as shorthand for assigned color teams
On, e.g. "On Me"
Units should form up with the indicated unit leading
Step off / Move
Indicates a period of movement
Front / Left / Right / Rear
Directions relative to the facing of the team or squad. Front-left and front-right may be used for precision, corresponding to 45° offsets.


The direction of the front or nose of the vehicle
Unmounted persons should mount the vehicle
Go, go, go! / Disembark
Embarked infantry should disembark promptly
Bail! Bail!
All crew and passengers should eject immediately
Quarter / half / full left / right
A 22.5°, 45°, or 90° turn.
Stop turning
Rotate, or orient the vehicle to the given bearing or relative direction


A basic organizational unit, consisting of anywhere between five and fifteen individuals
Team / Fireteam
An ad-hoc organizational unit consisting of around four individuals.
AR / Autorifleman
A role corresponding to the capability of high-volume fire, through a machine gun or light squad weapon
AAR / Assistant Autorifleman
An AAR carries spare ammunition for the AR
Combat Life Saver
AKA a medic, it is the responsibility of a CLS to treat the wounded
Squad Lead
The most senior individual in the squad, their role is to direct all other squad members
A unit equipped with anti-tank capabilities
Ammo Bearer
A unit who carries extra ammunition for other
A role corresponding to the use of long range grenades to damage and disrupt key targets
SDM / Designated Marksman
A squad-level attachment, the Designated Marksman positions themselves separately from the rest of the squad in order to eliminate high threat targets.
FTL / Fire Team Lead
Sometimes, an individual will be designated as being as explicitly in charge of a given fireteam / color team.
Indirect Fire
Any incoming or outgoing fire where there is no line of sight from origin to destination, e.g. artillery.
Any one of a number of templates where each unit positions themselves in a fixed position relative to each other unit.
A formation where units position themselves to the rear and to either side of the lead, forming two legs of a triangle, with the direction of movement being towards the angle
A formation where units position themselves into two staggered files behind the lead
A formation where units position themselves in single-file behind the lead
A formation where units position themselves laterally, perpendicular to the direction of facing
A formation where units position themselves to the front and to either side of the lead, with the direction of movement being away from the angle.


To be positioned such that terrain provides cover, and, in the case of infantry, the direction of fire is perpendicular to the longest axis of the element
To be positioned such that an element is exposed to fire along its longest axis
Reverse slope
A defense tactic wherein attackers must crest a terrain feature in order to reach the defenders position
A technique where each unit moves away from a threat, one or two at a time, while the others lay down supporting fire.
An element should move forward while another provides cover or security. "Bound past" is used to indicate the element should move past the covering element and get set in a forward position.
Base of fire
A position where one element is able to provide sustained supportive fire on an enemy position while another element maneuvers
Units observing and covering for another element


An area that is lower than its surroundings
Sloped ground that is lower than the ground around it. Similar to a valley, but sloped.
An area with less vegetation than its surroundings
Contour Lines
Map markings which indicate terrain of the same elevation; can be used to determine terrain features.
A long, steep slope or cliff dividing areas of two different elevations
A square section of a map and its corresponding numerical coordinates, often 100mx100m or 1kmx1km
Eroded ground with steep sides, and a width of a few metres
A series of connected elevated points, such as a mountain range
The line formed by the connection of highest points in a ridge
A flat area which is the lowest point along one axis and the highest along another
A ridge jutting out of sloped land.
A long, mostly flat area with upward slopes on either sides


.50, 50 cal'
A large caliber of round. Usually indicates a heavy round that is deadly to thin-skin vehicles, and infantry.
One of several grenade cartridges intended to be fired from grenade launchers
An intermediate cartridge. Used in more recent Soviet and Russian weapons, such as the AK-74.
Usually, 5.56x45mm, which is a standard intermediate cartridge used in many weapons manufactured in NATO nations.
The Chinese standard intermediate cartridge.
6.5x39mm Caseless
An intermediate round used in the MX and KH2002 series of rifles.
An intermediate cartridge. Used in post-WWII Soviet and Russian weapons, such as the AK-47 and SKS, succeeded by 5.45x39mm. Also called "7.62 Soviet"
A full rifle cartridge. Used in many battle rifles and machine guns. Also called "7.62 NATO"
A rimmed, Russian rifle cartridge. Very similar to 7.62x51mm, not used in vanilla Arma. Also called "7.62 Russian"
AA / AAA / Triple-A
Weapon systems with the capability of destroying or disrupting enemy aircraft from the ground. AAA refers specifically to ballistic weapons, rather than guided missiles.
When used in the context of anti-armor munitions, indicates APFSDS or APDS rounds
Armored Personnel Carrier: A vehicle with some armor and weapons designed to protect an infantry squad during transportation
Armor Piercing Discarding Sabot: Rifled anti-armor munitions, some are available for anti material rifles.
Armor Piercing Fin Stabilised Discarding Sabot: Anti-tank munitions designed to be fired from a smooth bore cannon (typically, a tank gun)
Autorifle, Autorifleman: An infantry rifle that has been augmented with the capability of sustained fire. Can also be used to indicate the role associated with such a rifle.
Anti Tank
Anti Tank Guided Missile
AV / Alpha-Victor
Armored Vehicle
A pressure wave produced by various cannons and launchers that can harm or kill infantry, especially in enclosed areas.
In the context of cartridges, indicates a lead bullet coated with a metal jacket.
Crew Served Weapon: Any weapon system that must be operated or transported by more than one unit e.g. statics, vehicle mounted weapons, mortars
A rifle with a shortened barrel, making it easier to use in close-quarters and slightly lighter at the cost of muzzle velocity
A type of cartridge whose body is made entirely of propellant; no empty case exists to be ejected after a caseless round is fired.
Full Metal Jacket: See "Ball"
Machine Grenade Launcher: A crew-served grenade launcher capable of high rates of accurate fire.
High Explosive: Indicates a detonating explosive round, effective against unarmored targets
High Explosive Anti-Tank: An explosive round with a second stage anti tank round.
High Explosive Dual Purpose: A 40x46mm grenade augmented with an anti-armor charge. Can disable some light-skinned armor.
Haut subsonique Optiquement Téléguidé: Wire guided ATGM
Infantry Fighting Vehicle: An armored vehicle with a heavy weapons platform and the capability to carry and support an infantry squad
Light Machine Gun: A belt fed, man-portal machine gun firing intermediate cartridges.
Main Battle Tank: Refers to all tanks in current use, except for the Wiesel AWC, a tankette.
Munitions with an explosive payload, propellant, and guidance system
Medium Machine Gun / General Purpose Machine Gun: a belt-fed, man portable machine gun firing full-sized rifle cartridges.
Man-portable high-angle artillery
Multi Purpose: Usually in reference to cannon rounds, indicates a mix of anti-armor, anti-infantry, anti-structure etc. ability
Recoilless Rifle
A launcher or artillery gun that fires self-contained cartridges with an explosive payload; propellant gas is ejected out of the rear, causing no recoil (e.g. RPG-42). The projectile has no propellant of its own.
Munitions with an explosive payload, propellant, but no guidance system
Self Propelled Gun: Vehicle mounted artillery
SPG-9: A Soviet recoilless rifle
Specifically, a device used to encase projectiles in flight. Generally, any round which uses a sabot. Usually refers to one of APFSDS or APDS rounds, designed for heavy penetration
Any weapon designed not to be moved during a firefight, usually referring to an HMG or MGL on a tripod
Indicates a round with a pyrotechnic powder that burns visibly in order to aid in spotting and aiming. Sometimes indicated by suffixing "T" or "-T" to a round name, e.g. "MP-T"
Wire Guided
A missile guidance system that uses a reel of copper wire from the launcher to missile to deliver guidance information. The wire is not simulated in game.