5/6/6/6/3
Cloak - Damage Bonus (90% total); Recharge Speed
Cloak, spam, shoot, reload, hide, cloak, spam, shoot, reload, hide x forever
Proximity Mine - Damage OR Radius. Either is fine, you really want the next bit in the tree. Its only important if and when you take into account Tech Bursts and the like; Damage Taken (Increase damage dealt from all sources by 20% for 8 seconds); Damage (the recharge option isn't that big of a deal since you'll primarily be using the cloak timer over anything else)
All this is for is finishing off tech setups and softening targets. Its also the main thing keeping Phantoms from crawling into your ass. Just don't use it like an actual mine. Its a shitty ME1 grenade frisbee.
Hunter Mode - Weapon Accuracy OR Power Recharge. Can't go wrong with either; Power Damage; Damage.
You'll be looking at 25% damage bonus from this tree alone. Accuracy helps out a bit too. Tighten dat choke.
Network AI - Weapon damage; Headshot damage (this is big); Weapon Damage
22.5% weapon damage increase. Hit a weakspot while cloaked and it doesn't even matter how far away they are or if only a few pellets connect - they die. Line up eye level shots and with the Shredder Mod on you'll be looking at 3-4 kills per shot if you're hitting groups.
Robot Fitness - First 3.
My Claymore is only VIII. Rocking high caliber barrel V and Shredder Mod V
Hmm I'll have to try this build. Not even sure I have that shotty or those mods.