When I reached enough points to unlock the desintegrator gun (dgun), I bought it thinking it was the strongest weapon of the game. Its description is something like "a weapon that vaporizes anything in its path", so I thought it was like the dgun in BA/tech ann. However when I was in game I couldn't even kill a sumo in 1 shot and my com cannot even die in 1 shot when it's fully morphed. I was pissed off I had wasted so much points on a crappy weapon.
If there was the damage and damage per second in each weapon description, I think many people wouldn't buy stuff they don't want.
I'm not using the dgun anymore. The heat ray weapon is in fact the weapon with most dps (250 when very close to ennemy I think).