Willing to share your build? 
http://kalence.drupa...!23X53384!4F85G
Explanation + Strategy
Fitness: I need at least lvl 5 Fitness, since I find shield recharge speed essential on Plat, which is where I play 99% of the time. Since I have a few leftover points, the best option from my point of view is to evolve to full health and shields.
Alliance Training: lvl 4, just for weight reduction. Lvl 5 headshot damage is not bad and lvl 6 10% extra damage is excellent for the Claymore, but it's too much points.
Singularity: Provides CC (especially on choke points) and biotic priming for your warp ammo.
Warp: lvl 5 debuff is esential. Lvl 6 is for the extra damage from biosplosions; I find it better here than in Singulaity, cause I get another debuff and I tend to use W+ SW on boss units, anything else dies mostly from one shot.
SW: Biosplosions and recharge speed. Take Radius if not on PC.
BOOMSTICK: I can afford to take HCB, cause I have 25% armor reduction from Warp and 25-65% from Warp ammo after the first shot. Annoying Guardians get stopped by Singularity and damaged through the shield; if they must be dealt immediately - there's always SW + Headshot. Taking HVB would reduce my cooldowns too much for too little gain.
Armor Bonus + Gear: If the lag is great or you are playing with idiots - Cyclonic is best, if not - I also choose between shield-recharge, power recharge and adrenaline. Gear is usually Stronghold or Shotgun (or GS/AC if it's a solo challenge and it's allowed).
Strategy: This one is more of a hybrid. I try to place a Singularity in a choke point, or use it for CC when some mook group spawns near me. Also great for phantom hunting. Speaking of which, heavy melee is also excellent against them, just don't do it when there are other baddies around. W + SW is standard, the highest biotic explosion damage (except Warp + clusters, I think). I just reserve it for bosses and groups, because my cooldowns are not the fastest.
I used to run this as a 66066, but I find this build to be more versatile and fun. The build on my other adept is your standard 66606 caster with 3 biosplosions every 8 seconds (S+SW+W).
Of course, there are other schools of thought, but that is what is fun and effective for me.