Ok, back in the good old days of Halo 3 BTB with the legends like Obi Wan Stevobi, and Foman BTB was truly the best playlist in the game. My only request is that they make it a so that you can play Flag, Assault, Slayer, Teritories, and even the dreaded Big Team Splockets. The gametype variety kept the playlist fresh and fun. And I know i will get a lot of hate for saying this but get rid of ordinance it makes it way too difficult to run a warthog with people getting a power weapon every 2 minuets.
I agree with the point about the ordnance. Although I like the system and would not like to see it vanish altogether, the personal ordnance needs toning way down. Like the OP points out, it is impossible to get a good warthog run when people are getting granted spartan lasers and incineration cannons from personal ordnance.
IMHO Such high end power weapons should be restricted to map ordnance items.