Very good work!!
wall of text ahead be aware
very nice game indeed =]
aim isnt realy a problem...(normaly i was getting at least 90%)
but you see... the weapons arent really balancied...
its kinda easy to perform headshots with thompson and with "scope" you can burtshot the cars till you get the m1919... which aim was surprisingly good aim too.
if you get an infantary guy between the 2 bars(the aim) and shot once they always(90%) get killed.
some ideas
try to make the player to need to buy weapons more frequentelly
rifles should fire a little slower (if you keep clicking it looks like a tompson)
with the rifles a little slower make its acc a little better between shots
and the cooldown from bazooka make like the last resort...(you can wait for it to reaload while shoting others weapons.. making the cooldown of 6 secs realy easy to manage)
oh btw 10/10 =]