Yeah, Location is a bit weird, because im new to SED and i didnt know much about how the game loads files. Ill fix BFE third person problem soon, and yeah Projectile is a problem, that i dont really know how to fix.

Forgot to say.
Location to weapon a bit strange.
Content/Content/(SeriousSam3/SeriousSamHD)/... ?

Really good work, but it has an issue with BFE third-person because it uses animations from HD Grenade Launcher in Right and Left hand tools. Change it... to BFE rocket laucnher animations(for example). Also, "Pose to Pose adjuster" parametr should be changed too. (To "Idle_RocketLauncher" for example)
It also searching a "Bullets" attachment when I'm shooting. I don't know, is that only my problem or no.

very cool and good