I used rex’s with 15 attack mutations 5 stam and 20 health just so they were tanks and then got on a Yutarannus and had a whole bunch of Dino’s in cryopods to just have an insta army ready for the overseerer also, for the tek cave just have them in cryopods after you get them all in and the door shuts just cause they then won’t have a chance of dying.