This is me, trying my best to give a bunch of constructive criticism. No offense is intended, and this game is awesome. Just like anything else, though, it could always be more awesome. 
game weapon graphics nitpick gripes (extreme edition):
small/
nonexistent smg
primary/
secondary recoil animation makes the gun feel weak, and the smg reload animation is a placeholder
(I like the model, uzis are the most fun smg in
any universe, only tweak i'd suggest is adding a moving slide on the top to make it less static)
flamer looks like a homemade prop
(scrap it and start fresh, maybe use a bullpup design with a rear loading canister)
the flamer flames themselves look very
fluffy and airy. in my opinion the stream should be more liquid-like,
and opaque, with a sound to match, and overall more like a
liquid powered flamer instead of a gas powered one
rocket is nice, but could use a readout on the top-left side to make it look more interesting and less static
(this could be done by adding a blank screen, then putting a
glowing readout on top that says something like "ready", "loaded", "armed", or "danger", or several words & symbols)
rocket charging is currently completely static, it could also use the readout by having it
slowly flashing at half the tempo of the timer clicking.
the rocket itself could have a burnt, charred tip... after all, it was just
fired from a rocket launcher. also, a thick smoke trail would be nice.
the rifle clip pops out automatically when the clip empties, but you can barely tell
(if you ask me the rifle clip could load in and pop out horizontally through a deep slot in the side, and with a louder,
sharper,sound than it is currently so that it's
easily visible and audible when it ejects, plus, power down the glow, just like the plasma does)
also the scope needs to be either more round or more square, as it is right now it looks rough with the octagon shape.
plasma gun looks like it should have some effect going on while charging, could the glowing blue parts slowly
dim in brightness while charging a sphere?
for the flamer charging action for its secondary, the tank could momentarily glow
much brighter until the charge is released.
the grenade has no real visual effect for charging, so, it could have its dynamic light dim/flash in sync with the beeping noise, this would be noticed on the player's arm reflection and
in the environment.the sword could have the shaded blue part of the blade
momentarily darken during a swing, and return to normal at the end of the swing arc
the blue electric field sheathing the blade could
distort and warp to show more accurately where the hit area is, like for the horizontal swing it leaves a trail behind the blade,
and for the vertical swing it
extends past where the physical blade stops, to illustrate that it has increased range over the horizontal swing... and the effect would look cool
lastly, where was that WIP shotgun model that was floating around here? that thing looked
sw33t!the guns are something you look at a lot, and so far the best looking gun is the one that is used the least...
the pistol-----------------------------------------------------------------------------------------------------------------------------
i might made crude concept art for these ideas if anyone is interested
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As far as gameplay goes, as is, it is balanced flawlessly. Some weapons take more skill to use than others but all of the weapons are balanced nearly perfectly in my opinion.

The only weapon bug I've noticed is fixed in the svn verion so I can't complain there either. This game has great gameplay and has it's own unique (and highly modifiable) gameplay style.

I lost the game.