I wasn't just thinking Melee weapons but Personal Weapons, guns as well.
Mono-Filament Blades
Vibro-Blades
Energy Swords (Light Sabres)
Guns:
Gauss Pistols
Hand Flamers
Blasters (Hand Plasma Guns like the PPG of B5)
Stun Guns (Sonic and Energy)
Disintegrators (first as starship, then vehicle then personal weapons) [These are actually Traveller Canon in the Twilight's Peak adventure]
Gravity Guns (up and down)
Net guns (like Spiderman's webs)
Probably a lot others, but those are what comes to mind quickly.
All of these, and many more, could be put into Traveller stats, but the TL might be above Imperial, usable in ATUs if not the OTU.