Weapons in Mass Effect are divided into 4 different weapon types and are the main way to inflict damage to Enemies and Bosses. All Weapons have 3 different attributes and level (I through X). Higher levels, imply a more damaging weapon, greater accuracy and longer firing periods before overheating in comparison of lower level Weapons.
Weapons in Mass Effect can vary between I to X level. The higher the level of the weapon, the better its stats or attributes are compared to the lower leveled ones.
Damage: Damage is the amount of damage inflicted on a target. First on its shields, and then its health (Minus their Damage Protection on a succesful hit).
Shots before Overheat: It is the number of rounds the weapon is able to fire before entering an overheat state in which it becomes disabled for a short period of time.
Accuracy Rating: This attribute controls the size of the aim and time it takes to stabilize after zooming. Crouching doubles the base accuracy of a weapon.
Mass Effect 1 Weapons