From: Dismal Seepage Indiana
m10ob you said
Don't think it wasteful to prep fire a corridor between you and your objective, as you might also detect minefields
I'll use this for an opportunity to ask you about mindfields. Can your bigger heavy artillery, as well, clear a mine hex?
1. How long do you need to leave your engineers in a mine hex to know its been cleared?(many times I have left a mine hex; thinking it was cleared to find out it still had some mines in it).
2. If its best? to have more than one engineer to clear a mine hex? How many would you suggest to do the job?
The answer to all of your questions depends on how many mines are in the hex in question. The number of mines cleared per turn per engineer unit is a matter of the computer "roll of the die", and whether the engineers are working unhindered or not.
Keep them concealed with smoke, and give them cover, as you would in real life.
If I am working on a time constraint problem, it is not efficient to put multiple units working on one hex, besides, bunching your troops on a battlefield is just asking for casualties.
Once I have located the mines, and put a unit working on them, I will try another engineer unit to go around them, to see which direction the mines run, and possibly learn their depth.
Further, just because a unit did not "find" mines, and did not trigger any, does not mean the area is not mined. Maybe there are only 5 mines per hex, and allowed some grunts to get thru, and bigger than Stuttgart, you try to send a tank across and blow a track off, and create an immobile, (and large) target for the enemy to concentrate on.
Smoke and support is always paramount in getting thru a minefield.
Conversely, if the enemy is advancing on me, I will have artillery pre0targeted on my friendly mines, (to kill his engineers, and if he throws smoke, I will try to targer my heavy arty on the furthest area of his smoke, for at least 2 turns, (depending on the time of my reaction fire.
Mortars are good for quick reaction time.