GRAW 2 achievement help

[cooldello6]

Does any one have any tips for ultimate defender? even with like 6 people i still find it hard...

[Snowy]

haha. this is by far the most creative achievement yet that i have ever see. i was doing it with a room and i actually fell asleep at the controller. we still did it. it should be hella easy with 6 people. just get that gun that has 100 rounds per clip and can shoot semi. forget what its called. go for the head and you'll be fine