Well... for me... Uhh... Ehh...
I would like to see more powerful Maruder... A bit... it's electrical attack isn't really as strong as it should be... I mean that it have so small range. You can score a hit only when you are just over your enemy or you are touching hummie's legs already. But not as powerful as in BalanceMod... There they are best unit in whole game. Just to make their eletrical attack has range smaller a bit then Tesla for exemple. (Well... it has such range, but you need to be much closer to turn that attack on)
I would also like to see more powerful Granger. :> Those blobs are good, but stronger melee attack would be cool. We see blasted alien more often then hummie's killed by Granger.
Also I think that there should be some better a bit s3 hummie equipment. In duel Tyrnat vs bestequippedhummie the first one usually win.
Nades are good, but for me their throwing range is too short and timer is too long.
I want also new head/visor for BS.
I would like to see some weapon like MD, but with higher firepower... Usually such weapons deal 85-100 dmg. ;] It would be far too much in Tremulous, but 38 doesn't make it.
I want explosives! Grenade luncher, rocket luncher, anything!

Low fire rate, small clip, but high power.(much lower then luci of course-as projectiles are faster and theres no need to charge your shoot)
Hmm... i thnik also that it is way too easy to burn yourself with flamer.

Well... that's it. ;d
@edit
O, o, o! I also dont like weapon handling(one handed) as BS.

@edit
Ok, i want also auto kick for few TKs and inability of deconning when theres vote for kickin ya.... Just while ago my base got deconned by teamkiller. >.>
@yae-yet another edit
I also would like to see some better rifle and enebled /cg_fov

And i want some heavier armor then that light one.
