Congratulations! You just won the Sniper Badge and 30 points! It's easy - like Gallicus said first day search for survivors and then kill them with the chainsaw + any other weapon combo.
Decent game, but lvl 12 could be more fun if it had a boss, instead of a 10 minute survival. Second thing - the last 3 or 4 objectives - kill RED oponents on RED coloured area - why not white oponents on white area? Geez, who did this? All in all it's nothing special, I really like Diseased Prod. games, but this one is boring. 2/5, scarcely.
Got all the badges, great game, I got late to work because of it and when I get there I will play it one more time, no doubt about it! 5/5 and a fav from me, still - only tier 5 ending...
Geeeeez - this game is a waste of time, like wtf?! I've got all the buildings on the last stage, with the boss and he destroyed them like in 30s, hardly a bomb or two hit me on the levels before the boss - 2/5 from me, nothing cool about that game...