I don't often find a build that includes LRMs that I like, but this seems to be working for me during pug drops. There is plenty of ammo to spam LRMs as long as you please, and you have a 29pt direct-fire group when you have the opportunity to use it. I use the lasers in group 1, the AC/10 in group 2, missiles in group 3, and the LL alone in group 4.
WHY get AMS if you don't give it ammo!!!! Here, I took out +A and give it the BAP instead. Also got you that ammo you need.
Whoops! I wondered where that extra ton came from! Thanks for pointing that out. I would've swapped a ton of LRM ammo for it. EDIT: Fixed the OP to include AMS ammo.