So as I see it there are two options and one thing has to be done either way.
1. Make the guns better and live up to their description. For example, nitro blaster is "super fast"
2. Offer us ticket refunds on the guns, so that maybe we can try another out for a bit. Compensation for false advertising.
And no matter what happens - DESCRIPTIONS - If you aren't going to make the guns better, go ahead! Change the descriptions.
I can imagine it - "A slow crappy gun with low clip, sucky damage and high freeze with no spread- it looks cool though!"
The arcade will be more laughed at then it already is.