According to the GECK it does only 20 damage per shot and can never crit.

Is that why at 100 big guns most enemies take 6+ missles to kill?

my big guns level is around 40 and i do around 90 damage per shot.

The GECK lies, it does lots of damage. Also, I don't use it because I had 100 or so missles so I made a big profit.

My big guns level is 100, and I'm doing something like 240 damage per shot, and easily picking up crit hits all over the place if I fire into a crowd.

The GECK's damage values aren't the same as the in-game damage values that have been calculated with your skill levels. As far as how many missiles it takes to kill an enemy; it all depends on what kind of enemy your trying to kill.

your big guns must be really, really low then

How can you even tell how much damage you do to an enemy?

>100 big guns
>low

Wtf am i reading.