It's pretty funny really. I haven't been around for ages but apparently I am still contributing to the GT community!
I made half of those models, tho you're only using the 3rd person/LOD/lopoly versions.
I even invented the name "T-10".

(I'm quite chuffed that little old me has contributed towards star wars canon - even if it is only for one person! lol )
Now, whilst Im not much of a fan of people taking other peoples work I am not really sure I want credit for my work in this instance - seeing how, as I said, you're only using the lowpoly versions - so I suppose I am posting this so that you don't take other peoples work, who may want credit or something in return, in the future.
The ones I personally modelled are:
SE14r
DLT19
T-10
MG15
I did so for the Star Wars mod "First Strike" for BF2142. I am no longer part of the First Strike Dev team, having left a few years ago, but I see other guns there which have also been taken from First Strike.
I thought about posting this in a PM to you, Warlord, but tbh I'm not really going to be around much to discuss the issue further and I personally don't really care all that much anyway. I don't think other people on GT should treat you badly either... we all make mistakes... especially when trying to impress.
There's really no need to use other peoples work. Modeling is a piece of cake. If you want to use other peoples work just ask them. The guys at First Strike are sound folks. They've given other mods permission to use their work in the past.