Due to the way Arma models vehicles and armor, armored personnel carriers and troop-carrying vehicles tend to be a bit vulnerable to enemy fire. It is a good idea to avoid staying mounted as passengers in them, due to the risk of a single RPG wiping out the entire vehicle, its crew, and the immediate family and close friends of everyone who was embarked on it at the time.
When dismounting, infantry elements should provide 360° security as a standard. They should also try to get at least fifteen meters of clearance from the vehicle to help protect against primary or secondary explosions in the event that it is engaged.
It is a good idea to have “Eject" bound to an easily accessed key combo for emergency dismounts, such as 2x Ctrl+E.
Moving on, let’s look at the various other considerations that must be made regarding halts and dismounting from vehicles.
WHEN TO DISMOUNT?
To help decide on when to dismount, versus when to stay mounted, follow these basic guidelines.
- If a halt is short duration (30 seconds or less), mounted troops typically stay in their vehicles. All personnel continue to scan around the vehicle and stay alert to any potential enemy threats.
- If a halt is longer duration, mounted troops dismount and provide local security. Team leaders and squad leaders will order the dismount, at which point the “Dismount Drill" procedures are conducted. When it comes time to remount and move out, team leaders and squad leaders will say “Remount", “Mount up", or some variation thereof, which will then be repeated by everyone in earshot over direct-speaking comms. Each team leader will maintain accountability of their men each time they dismount and remount to ensure that nobody is ever left behind.
- Regardless of the duration of a halt, the driver and gunner always stay mounted. The only time they will leave the vehicle is if it is disabled or destroyed. The gunner may also dismount if the vehicle gun is out of ammo, so that he can employ his personal weapon.
5 & 25 SCAN
A “5 & 25″ scan involves scanning the area immediately around you and the vehicle for five meters, then dismounting and scanning for 25 meters in all directions. The idea is to ensure that the vehicle did not stop near a concealed satchel charge, mine, or enemy. The tactical situation will determine how much time you have to spend on this scan. At the very least, upon dismounting, ensure that you do a hasty 360° threat scan. Ensure you check all of the concealment-offering objects – such as bushes, brush, etc – around you as time permits. A well-camouflaged enemy will be extremely difficult to detect.
Note that due to the peculiarities of how Arma models armor and vehicle protection, the “5 & 25″ scan often becomes “get out of the vehicle FIRST and scan afterward", instead of the more real-world procedure of scanning the first 5 meters while still mounted. In reality, being mounted in an armored vehicle provides a very large degree of protection. In Arma 3 this can depend heavily on the armor of the vehicle and the potential explosives used, so it can be a judgment call as to whether you’ll want to dismount first or not.
DISMOUNT DRILL PROCEDURES
The ‘dismount drill’ is a standard set of procedures that are executed upon dismounting a vehicle. While they can differ somewhat based on the tactical situation (ie: under fire or not), the same concepts apply at all times.
If dismounting under fire…
- Dismount once the vehicle has come to a halt or is moving slow enough that exiting will not injure you.
- Immediately return fire on known or suspected enemy positions while moving to a position that offers cover or concealment. If no cover or concealment is available, either use the vehicle as cover, or take a lower stance.
- Begin the “React to Contact" battle drill and follow it until directed otherwise.
- If the situation allows, conduct a hasty “5 & 25″ scan, as described above. Ambushers will often try to get vehicles to stop in an area that has been mined or otherwise booby-trapped.
If not under fire…
- Dismount once the vehicle has come to a halt.
- Move away from the vehicle to a position that offers cover or concealment. If unavailable, take a knee or go prone to reduce your exposure.
- Conduct a deliberate “5 & 25″ scan, as described above.
- Scan outward and identify likely threat avenues, key terrain, etc.
- Continue scanning the surrounding terrain for enemy threats until ordered to remount the vehicle or move out with your team leader.
Bear in mind that this same dismount drill can be used when exiting a helo or any other vehicle where you may need to immediately fight or form a perimeter and provide security.
The decision to dismount can be a command from a leader or on your own disciplined initiative. If given as a command, it will be “Dismount, dismount!". Individual initiative is important here, of course. Don’t sit in a vehicle getting shot up if you know you should be dismounting to react to the threat on foot!
Do not say “BAIL OUT!" when ordering an infantry dismount! “BAIL OUT" will cause the entire crew to exit the vehicle as well, and should only be used if the vehicle is in imminent threat of being completely destroyed.
Everyone in a vehicle must scan their sectors to maintain situational awareness at all times. Vigilance will help to spot enemy ambushers and spoil their element of surprise. The sector a person scans will depend upon where they are placed in the vehicle. For an MRAP, basic sectors are depicted below. 360° coverage is the ultimate goal.