someone help me in a game im making

[steel harbor]

bassicaly im making this cod game and i need guns, i already made the movement system and sliding and crouching etc and i did vaulting over walls now i need map, a lobby, a round system, a shop and ui... so can somebody help me

[frigid anvil]

look up gun tutorials theres PLENTY

[steel harbor]

idk how to model and build