Responses
no it's not, alphega is a different concept here bc as you said, an enigma is a hyper dominant alpha who can impregnate other (but not limited to) alphas. this implies the IMPREGNATOR is special, which he isn't. the ml is just your regular dominant alpha (a concept which is widely accepted but depends on the author on the rarity of these sub types) whereas the MC is the SPECIAL one, he's a dominant alpha WITH 1% ACTIVE OMEGA DNA.

isn't it more likely an alpha x enigma?? you know enigma is also an alpha but can impregnate another alpha