2sacredshot. Some ppl says its easy even on hard. And what the glitches did you found?
2doomcry. Try put these cheats in game :) They are not works at Kongregate coz I syggested badges :P
AI is enough smart. May be in real life weapons cant kill you with 2-4 shots (r u god?), but its a game. Its classic tactic shooter like Counter Strike or Quake. You should buy armor and helmet to reduce damage at least to 6-20 shots per dying or just play on "Easy". I dont need your review if you generally dislike games like it. And I dont know what are you looking for in shooter category, what you did not find in this game.
2Prison. Play more games like it or like QL & CS. This game is very easy even on hard. And I have too much made it easier before. For people who first time play almost realisitc shooters it of course hard in beginning. Just buy helemt, armor, move and shoot off their heads. Enemies start shooting you only when distance between you and them less than 1 game screen and you have seen them enemy, or wound them first with your weapon.
What bad some ppl found in controls? WSAD works, Arrows also works. Throwing grenades with [Q] or [0 Ins] buttons. Just chose your fav contorls without any binding. Its more than simple.
Kingongregate. half its a 4/103,439 ? I dont know how its happen, maybe viruses or some incorrect browsers, but I use standart control events of Flash technology as other all another developers.
2Riptus Speed of reaching money ~ with count of headshots + kills. Looks like you playing good. With worst passing player can max all upgrades only at 14 -15 level.