The recurring shootin' and lootin' challenge requires you to kill a certain number of enemies in any game mode in reach.
Halo reach firefight matchmaking game types
To matchmacking and click playlist go to coopertive and play firefight doubles play arcadefight and play on any map the match is 20 minutes an gets you about 4000 to 5000 cr a game.
Halo reach firefight matchmaking modes
You've completed all the challenges, and you have no other commendations which are tantalizingly close to completion in either campaign or regular matchmaking, then go to: matchmaking-cooperative-score attack- gruntpocalypse.
Halo reach firefight versus matchmaking
When approaching the bridge, you should reach a checkpoint, and the spirit dropship will come in and drop off the wraith.
Firefight tipo arcadefight , easiest way to get multikills and cannon fodder and all of them commemdations to level you up fast cause trust me, i wouldnt be a colonel g2 right now without these tipsclick to expand.
Sometimes the challenges are for firefight, when that is the case, you need to go play it.
Fastest way would probably be firefight score attack matchmaking, make sure you choose gruntoplus firefight.