Long Shot-Help With H4 Achievements

Hey guys, wondering if anyone would be willing to help me get my final set of achievements for Halo 4, it's been bugging me that I never got them all.

I need the ricochet ones mostly, and the survive 3 vehicle explosions, though I'd like the ricochet ones the most to get rid of that damn 7 in my gamerscore!

​I have two controllers, and could knock these out quite easily with 6 more players/controllers.  

Total long shot since I know not many are playing this anymore, but send me a message if you'd like to help.  Cheers!