Looking for a bit of advise for Adept.

In my opinion, if you are going to use Warp Ammo on the ME2 Adept, I would use this build:

4 - Heavy Warp
1 - Throw
4 - Heavy Singularity
4 - Pull Field
0 - Shockwave
4 - Bastion
4 - Heavy Warp Ammo


Generally, Heavy Singularity is preferable to Wide since Heavy lasts longer. Wide Singularity will die quicker the more enemies it holds.

Heavy Singularity is generally most useful for holding a protected enemy in place,it can although yes it can sometimes 'miss' but that is rare. It is a problem since it can hit cover instead of an enemy but that is a problem with all powers.

Warp Ammo deals extra damage to enemies lifted by biotics such as Singularity or Pull, so maximizing Pull and Singularity is ideal. Warp Ammo deals x2 damage listed to lifted enemies, so Heavy Warp deals +100% damage to lifted enemies. Note that the +50% damage to armor, health, and barriers is based off the base weapon damage, not the total weapon damage. For example, if a weapon deals 10 base damage, then Heavy Warp Ammo will deal 5 damage to armor, health, and barriers, but 10 damage to lifted enemies.