...unit you may purchase mid-mission) and you are ready to explore the map in real-time until the enemy stains you or, preferably, you trigger an onslaught. When the fight's underway, you and the participated enemies alternate between ducking behind cover, shooting your firearms, lobbing grenades,...

...fourth unit you may obtain mid-mission) and you're ready to explore the map in real-time before enemy stains you , preferably, you activate an ambush. As soon as the battle reacting, you and the engaged enemies alternative in between ducking behind cover, shooting your firearms, lobbing grenades,...