Hey Tman. I actually picked this up based on this thread and the Tower Defense thread. I went back on the first endless after I had realized how good snipers were. I had gotten through most levels using Plasma, Lasers, Fire and Machine Guns. But then as I was trying to beat the Hard and Expert levels, ended up using Plasma, Snipers, Cryo and Machine Guns. All my current endless scores are with that combo.
I could never really find a use for the Shotgun or Missile units and after I came back to Snipers, the Laser forces seemed to pail in comparison. As Murbella mentioned earlier, if there were more than 4 tower slots, I’d probably have used more.
On weapons, the top weapon for most classes have a rating around 790, with the exception of Cryo (~190), Fire (~290) and Plasma (~600). So it looks like you are still missing a few of the top weapons. Keep investing in those crates. :) The top tier Plasma is absolutely insane and I’m sure you’ll kill my endless scores once you have that.
One issue this game has is that only the first couple waves seem to be challenging. You can usually get your layout setup in the first couple waves, and then I ended up doing something else while the level finished. Fun though.
A note on level 15, Snipers is what got that one for me (above easy). But I was upgraded when I came back to it, so I’m not sure how effective that would have been the first time around.
Missing one achievement, kill 500k creeps. Considering I’m at less than half of that, with everything done, I’m not going for it.