Guns :
You have a few type of guns -
- Assult Rifles
- Shotguns
- Grenade launchers
- Sniper Rifles
- Turrets

Each weapon type has 5 guns to choose from (Except the turret, there are only 3 to choose from [In terms of the warrior class, I'm not sure about the mechanic class] two of which are attack based and one is for support) and each gun has 3 upgrades. Every gun has a level requirement which you must unlock in order to buy and then begin upgrading your weapon. Each upgrade costs more Crystals (Currency, I'm just assuming its called crystals, I've yet to find the actual name) than the last and can be quite costly if you're upgrading early in the game.

Aside from guns, you can perchase other things such as personal upgrades (ex, 'Increasing the radar range', 'Increasing the duribility of turrets', ect.), or better armor. These upgrades are probably the most expensive seeing as the level 1 requirement armor cost 12,000 Crystals to unlock, where as the level 16 (Final armor you can purchase) requirement armor costs 150,000. The personal upgrades cost from a few thousand up to 20 thousand (at base level, not including the 3 upgrades you can add to the base level).

♥♥♥, THE SPIRITS ARE AMONG US, THEY'RE SLAUGHTERING ALL IN SIGHT, I'VE BEEN GASHED BAD, IM POURING BLO0oOD FRUM MY RECTUM. I WISH I NEVUR SUMMONED ZAFO INTO THIS REALM, HES GOING TO RIP ME LIMP FROM LIMP AND SUCKLE UPUN MY BOWN MARROW