Bound For Life
Versus: In a public match, survive an Extraction map without suffering a single death on your team
30G
Acquired 2/18/2010
I have just popped this 'chieve with my partner after round 8, I died somewhere during the 1st four rounds & the two other guys we we're playing with both died more than once during rounds 5 - 8 (& we actually finished round eight with them both dead. Not just downed - DEAD!).
Therefore the actual specifics regarding this achievement are that a 'team' means you & your partner, not all four people playing as previously stated. A 'map' means one full map consisting of four rounds i.e. 1 - 4, 5 - 8, 9 - 12 or 13 - 16. As they load in a random order this could be any of the four maps - Temple, Aftermath, Crossroads or Zoo.
As for a guide on how to get it - get a good partner, stick together & make sure you revive them if they go down.