Another question

[alaric99x]

I've looked at the smaller scenarios, but the temptation of doing the big show is too much for me to resist.

Again, on the subject of bridges, looking at the paramater date in this scenario it says, "Small bridge wired probability: 85%." It also gives 0% as the probability for a large bridge. What does that mean? Are the percentages inverted so it means that 15% of small bridges will blow and 100% of large bridges?

Whatever the percentages are, is there any way to modify them? That is, are there some units that can "sneak up" better on a bridge, or do all units have an equal chance of blowing a bridge?

As far as engineers are concerned, it seems that any sized unit is able to clear a minefield. I guess, in the France '40 Campaign, it would make sense to divide my engineers so they can spread out and clear more minefields and obstacles. Is there a minimum number of engineers needed to clear something? I mean, 150 of them seem to be just as efficient as 500, able to clear all minefields all the time. Also, do the numbers of engineers influence the chances of success in bridging operations? Should I subdivide my bridging engineers so they can build 3 bridges, or will I increase the time it takes by using units that are too small?