Equip Bad-Juju. Then run 'The will of Crota' strike. Bad-juju gives you your super back in half the time. The first room has two or three majors that appear on the right, just use your super on a group of thrall to get orbs (and stab as many as you can, this helps your super too). There are two others that spawn on the left of the room half way through. You will go outside where the drop ships come, there are two sniper majors (one on each side) then a couple spawn in the center. Then in the field (skywatch) there is a knight running around that is a major. In the area where the witches & Ogre spawn you will run into a few majors and once you get in the omnigul room there are some major cursed thrall that spawn from the entry room on the right.