ASCM A30 "Halo"
http://hce.halomaps.org/index.cfm?fid=5476This map has a Battle Rifle in it, but it's not like all the other BR's. It's actually a DMR version.(not halo Reach DMR) and I actually did like this weapon alot.
And it olny has 15 Rounds per mag.
I think it also contains that Reach magnum I requested a while back(I think it was on another one of your threads.)
And it also has an awesome MA5B variant. It's held just like the MA5C in halo 3, and it has custom sounds, is more accurate, only has 40 rounds per mag, and new animations. Not sure, but I think it does more damage too.