As for Tommy, he is the asshole authority figure for MC and similar to Quinn I love him as a character because he is great in that role. He has strengths and glaring weaknesses which mean he has enormous room for future growth and as such he can evolve into an ally, an opponent or both during the course of the story. He is not one dimensional by a long shot, his ubber territorial cunt sergeant personality exhibits a tribal and loyal aspect to Tommy - family comes first, there's a reason he and Rusty founded the DIKs with that motto - and he has shown on numerous occasions that he is not above acknowledging MC for doing something he approves and even admires. His meltdown in Ep 5 was a result of his short temper and getting his party and trust shit on by Quinn and the hots, getting humiliated by the alphas, and the DIK mansion getting ransacked all in the same evening. Then he learns they can't rely on their old lifestyle anymore - childish yes, but not surprising that he'd be furious.
If you are familiar with the Netflix show
Elite, then Tommy resembles the character Guzman almost to a T - Guzman for much the same reasons and more is my favorite character on that show by far as well