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.

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	✓