@Drambar, these are server side mods. IE, they'd have to be loaded on the server and not your local client.
That said, I love the engineer dispenser that launches him in the air. Old timers will remember that in TFC when you destroyed your dispenser it exploded like a bomb, so engineers could use it to launch themselves onto a roof if they were good enough. Additionally, it could often be used as a sort of engineer sticky against the enemy.