DLC #38 - Battlefield : Bad Company 2 SPECACT Kit Upgrade

Kill, Kill, Kill.

You get new camouflage for existing guns. Simple as that.
                                                                       
All 4 trophies in the pack require you to achieve all of the relevant awards for each of the 4 classes in the game, including Recon, Assault, Engineer and Medic. 

Earning all of the awards for each class holds a 100 kill requirement, which means you'll need 400 kills in total to unlock the 4 trophies within the DLC.

It clocks it at around 8-10 hours in total, and can easily be achieved by just playing public matches and racking up the kills as you play along. It's a leisurely set of trophies, even though it proves to be a slight time sink.