115 laser damage with no need for ammo manufacturing? Hmm.
As for weapons, I dunno. Nothing has been more useful for me than ol' good rifles. Battle rifles, laser rifles, plasma rifles (not gauss though. 95% aimed accuracy and lack of autofire doesn't make me want to use it). There are heavy weapons in my arsenal, like plasma scorcher, BFG, flechette multicannon, mortars, but they're few and not commonly used. Every gal also carries a handle in case I feel like capturing somebody, a elerium grenade (much easier to get than fusion ones, and only slightly less effective), a smoke grenade and white phosphorus grenade (doubles as illumination tool).
I considerably like advanced laser weapons, since they don't require me to manufacture\scavenge more ammo. Same goes to other "infinite" weapons, be it discs o' death, melee weapons or flechette multicannon (yes, I mentioned it twice, because it's awesome).