Also man, here is something that's hard for me to cope with as a Vanguard player:
Warp Ammo is now way better than Incendiary Ammo for Vanguards. In ME2 that wasn't true! But since shotguns have lost their bonuses against Barriers and the crowd control effect of the Burst has been toned down, Incendiary Ammo just doesn't cut it in a lot of situations any more!