Scheldt '44 Deception Units

[Green]

I am just wanting to confirm that since Wired bridges are used in Scheldt '44, the Deception Damage percentage has no effect.

The User Manual explains this parameter as;

"Enemy engineer units attempting to blow bridges or otherwise cause damage are subject to possible failure of this action. The probability of this happening is determined by the Deception Damage probability."

The reason I ask is that this value varies across the .pdt files used in this game. This seems odd if the value is irrelevant. Having done some quick testing, wired bridges in the range of a deployed Deception unit still seem to blow at the expected rate even when Deception Damage is set to 100% and there are no enemy units patrolling.

It appears deploying Deception units will usually be of little value as their only potential effect is to disrupt enemy units in travel mode. Since the Deception Effect parameter is never greater than 1% the chance of this is 'slight' as mentioned in the Notes. And even this chance can be negated by patrolling. I have no problem with this but I just want to make sure I have got this right and am not missing something important. 

As a side issue I think the wording in the manual is somewhat confusing. It mentions that "Irregular units never utilize Deception effects" but since Irregular units can also be Deception units this is not strictly speaking always correct.