[Pyros]

Hi,

Although there have been improvements over the reaction fire on various situations (mainly issues connected with the Z-fire), the player can't have direct control on the units involved in this process.
What the player can easily adjust is the reaction range of his units. By doing such a thing he may have almost direct control if he manage to create a multi level/depth defense based on defensive zones with different reaction ranges.
IMO, the best tool would be to have some switches in order to decide the range for soft/hard targets etc... but this is very complicated.

cheers,
Pyros

p.s The difference in the efficiency between the two existing system depends on the situation of the battlefield. On massive tank battles you may get an advantage if you have the chance to destroy enough of your enemy armors (by massive OP firing) before they have the chance to fire for a second time. In a small skirmish with very few units the option to decide the moment of the opportunity fire works fine (but you must have very few units on the field)
Another interesting aspect of the WinSPMBT OP firing system is the firing support that you get from the friendly units that are close to your position. Whenever you perform an action, if these friendly units spot an enemy unit (that would be consider as a threat) then they will shot at this enemy unit. Again, if you wish to have direct control over the target acquisition of all your units you should set (to all of them) a very small reaction range in order to avoid this kind of supportive fire.