Evolution: Battle for Utopia - Weapon upgrading

There are three things you should think about when upgrading your weapons:

1. Pistols have a different upgrade scheme than primary weapons
2. Weapons are only useful to be upgraded if  you use them
3. Don't scrap your partially upgraded weapons.  You cannot make them again once you scrap them (learned the hard way)

Okay so, lets talk pistols.

They are your main source of damage for low level free players, and can honestly be used even for plowing through level 4 missions without needing medkits if you do it correctly.

Pistols:
max out their damage and ammo at the same time, then their crit chance

why that order?
You want your pistol's max DoT to be higher asap.  The less time you spend reloading, the more damage you are going to do in a shorter period of time.  Once you max out dmg and ammo, then crit chance just adds the icing on the cake.

Primary weapons:
max out their damage, then their crit chance, then their ammo.

why that order?
You want to max out how much damage each bullet does, so you use less of it.  The surefire way for that is to max damage first, then go for the crit damage.  Once those are both maxed, then increase that clip size so you don't have to reload as often.