Shootin' and Lootin' (1500 cR)- Kill 150 enemies in any game mode in Reach.
Fire When Ready (500 cR)- Kill 50 enemies in multiplayer Matchmaking..
A Satisfied Thirst (2000 cR)- Kill 250 Grunts in Firefight Matchmaking.
Home Field Advantage (800 cR)- Win 4 games in multiplayer Matchmaking.
Total: 4800 Credits
A rather weak day. Blastin' and Relaxin' can be gotten the same way it's always been gotten previously. Fire When Ready just takes some time, but on balance it contributes to the weekly challenge, so just grind away. A Satisfied Thirst is a new one, Rocker Fight is an excellent way to spawn-kill all of the Grunts. For Home Field Advantage, just play Team Slayer. Eventually you'll get it. So, get lots of kills and have fun everybody!