Combat can be prepared by either clicking on an enemy in range or by clicking the Attack Button at the bottom of the HUD. Either action will open a Targeting Reticle around the target. The TAB button will cycle through available targets--those within range and in line-of-sight of the attacking character. The Targeting Reticle displays useful combat data on the HUD.
In the top of the reticle is the name of the enemy, along with their class and level. Below that is a Damage Estimate Bar. On the left side, the hit probability is displayed in numerical and graphical form. Below the graphic is the probability of a Critical Hit and the enemy's Armor Soak. On the right side is a graphical display of the Action Points that would be used if this attack is confirmed. Below the Action Points is the current Recoil of the attacker, and the maximum amount that would be added to Recoil if the attack is confirmed. If the attacker has an automatic weapon selected, there will be two icons above the Action Points indicating the weapon modes of the weapon. The current mode will be yellow, the other will be cyan. The C button will toggle between weapon modes.