Overview

Countermeasures, detection of locking, tracking and missiles in flight.

Mechanics

	Player's vehicle is being locked by an enemy	ammo weaponLockSystem matches vehicle lockDetectionSystem
	A guided munition is homing on the player's vehicle	ammo weaponLockSystem matches vehicle incomingMissileDetectionSystem

The following properties of Ammo, Weapon and Vehicle can use basically any bitmask value (See also BIS_fnc_bitflagsCheck).

BI uses the following convention

	ammo	ammo (countermeasure)	weapon	vehicle
System	weaponLockSystem	weaponLockSystem	weaponLockSystem	lockDetectionSystem	incomingMissileDetectionSystem
0 - N/A	✓	✓	✓	✓	✓
1 - Visual	✓	✓	✓	X	X
2 - IR	✓	✓	✓	X	X
4 - Laser	✓	✓	✓	✓	X
8 - Radar	✓	✓	✓	✓	✓
16 - Missile	✓	X	X	X	✓