[Imp]

Thanks for reply info I am really after on bridge blowing is chance of blowing bridge think I am going to have to lose a day testing.
Can someone confirm a difference between dirt paved road as in wood stone probably in manuel but being lazy.
Agree chance of blowing up a bridge by lobbing a DC is zero & so it should be these guys are placing for demolition like a civilian contractor would hence assuming in a rush could do in time allotted with 50-60 men. Will edit DC out of as use all they have on bridge.
On arty need to know what gun size regularly downs a bridge say 1 in 3 chance.
Defender can only have arty that wont blow
Attacker Most of his arty should have a high risk of blowing with just a few to hamper engineers.
guess I had better put in scenario notes or will get a few disgruntled players