Nah it wasn't you. But the fact that you could be losing that badly in both towers and kills and come back to kill everyone reflects badly on the game's balance.
I think I see a problem there. 4x crit on a hit that does 230 should be 1320. Not 2300. If you had 4x and then multiplied the result after that by 2x you would get in the area of 2300. But that means that crits stack by multiplying the total damage and not by multiplying the base damage.
Most games don't allow crit multiplyers to stack at all; if they do, they multiply the base damage.
My base damage was 500-600...230 at level 20 is far too low. I don't remember everything I had or did, but it did work out to 4Xs, I believe. Whomever I was shooting didn't seem to have much(any?) armor.
The crits don't come overly often(10%) and it IS an endgame expensive weapon. I don't find it overpowered or unbalanced. When the game has stagnated/"has drawn out" and one player/team gets artifacts before the other, it's a game ender...and it should be. You "LET" them build up the gold for those artifacts.
If you played Total Annihilation: Core Contingency, if I let my opponent build a Krogoth or 4, well...it was my own fault when my base was thoroughly destroyed. By "let" I mean he generally played better than me, I didn't attack enough, or get the right upgrades/units, etc.
They're game enders and should work this way. Besides, seeing really large numbers is a lot more fun! 
