Don't know if I would have to make all new animations or there is a better way to fit huge Brute Boris hands onto Gmod HL2 built in animations (think you have to bite the boris and do it).
You can try it until the better one is available
Brute Boris : https://steamcommunity.com/sharedfile...
SWEPS throwable: https://steamcommunity.com/sharedfile...
Batim Sweps: https://steamcommunity.com/sharedfile...