Here is are the vital stats for 'Volcano' and other SCATMINE from the Stryker Brigade Combat Team Field Manual at:
http://www.globalsecurity.org/milita...ap10.htm#10-22
Note in particular the
limitations 10-24 f
required densities table 10-3
(0.5 mines per square metre to 'delay') Mobhack was actally underestimating the number of mines required in his earlier example.
laying & reload times 10-26 c 1
( 10mins & 20mins plus movement time for an experienced crew) 3turns plus 7turns plus....
Please also note 10-28 b table 10-6
Minimum safe distance 235m (5 hexes)
Theoretical danger distance 640m (13 hexes)
You would probably blow yourself up an the approx 5% mislaid mines.
Also if they are randomly scattered how are you going to get out of the hex?