Furious Soldier 2

Alright, so in Furious Soldier 2, your squad was sent out to scout this area where they found a secret underground bunker. The dudes guarding the place are all decked out in gear and heavily armed. Something sketchy is definitely going on here. Looks like there's some kind of lab inside, but before you can get to it, you gotta take out the baddies first. The game will give you missions to eliminate a certain number of enemies blocking your way.