Units

Aircraft
Aircraft units can fly over all ground obstacles and cannot be targeted by most armor units. The only type of mine they can trigger is the Anti-Air Mine.

Armor
Armor units are ground vehicles. Most cannot target air units. All armor units will trigger the Anti-Armor Mine, but only Heavy Armor will trigger the Anti-Tank Mine.

Light Armor
Light armor units are mostly wheeled vehicles, though the M1064A3 Mortar is a notable exception.

Heavy Armor
Heavy armor units are mostly tracked vehicles.

Infantry
Infantry are troops moving under their own power. Many can attack air units. Infantry are vulnerable to most forms of attack, but will only trigger the Anti-Infantry Mine.