Range attack effectiveness

[helios123]

Is it more effective to perform range attack with multiple units in one go vs one unit at a time? Lets assume no return fire.

[SwampYankee68]

If memory serves, I believe the calculations are the same either way, so it does not matter.

[Galeocerdo]

I thought there was a ranged attack mechanic in DC:AO that weighted the initial rounds of an artillery strike resulting in diminishing results towards the end of the round. Simulating surprised target vs. targets scrambling for cover during the strike. If that mechanic is in the game (?), it seems an initial strike with more tubes would cause more casualties.
However, it's possible I'm confusing DC:AO with another game as I can't seem to find mention of it in the manual.

[warnevada]

Combat mechanics consist of calculating an attack value and a defense value. The attack value starts with a base attack value which is modified by a series of factors, such as readiness, leadership, etc. The defense starts with a base defense value which is modified by a series of factors, such as readiness, entrenchment, terrain, etc. The result is a final attack value and a final defense value. For example, lets say the final attack value is 100 and the final defense value is 150. Then a random number is selected between 1 and 100 for the attacker and a random number between 1 and 150 is selected for the defender. If the attacker's random number is higher then the defender's random number a hit is the result. The nature of the hit is then determined randomly; it may be a casualty, or loss of readiness or entrenchment.

Each combat round every element attacks individually and targets are selected randomly from among the defending elements. Any combat results are applied and are in effect for following combat rounds.

So the short answer to the question is: there is a statistical advantage firing individual units rather than combining them into a single large barrage.

[SwampYankee68]

I am inclined to believe your detailed answer over my recollection!