he is not an independant character because he does not have the special rule "independant character". therefore he is (ironically) only allowed to be a unit of his own.
to rob, yeah:
ws7 bs5 s6 t6 w5 i5 a4 ld10 s2+
3 powers a turn, plus force weapon, psychic hood. no invulnerable save, the game still has to have SOME balance. also a squad
could potentially take him out (if he doesnt get them first)
maybe instead of the dreadnought i should have mephiston be my tank and buy more troops