Here's a mini guide for some people:
Heat - OP as hell. (needs a nerf ASAP)
Energy - Efficient, counters drainers, but doesn't stop heat guns
Physical - High. Damage. (some best ones requires bullets, which is a pain in the ass for weight)
It's a simple, yet puzzling game, with a ton of upgrade options!
Great game. It's possible to win without paying, but unlikely. With a bit of luck and some strategy it can be done. Nice variety of weapons and build possibilities.
My only gripe would be that heat weapons are way too OP and unbalanced. I feel cheap by just continually overheating my opponents to get wins. That is the one way that I can beat people who pay for the superior equipment, but aren't so good tactically. It also sucks to just sit there and watch your opponent overheat you and you don't have the opportunity to do anything but take the beating.
A good balance for the heat weapons would be for them to start draining some HP after overheating, make it to where heat usage goes up after consecutive uses of heat weapons, or require heat weapons to use energy as well, or add heat shields that absorb heat but drain energy until energy is 100% depleted.
great game but the heat bots need a major nerf