I tried it once again with no major problems against 3 adjacent spider holes!!!
I nothing to had except that:
-sniper are very usefull to go in the adjacent hexe of the spider hole and are nearly never detected and can assault wth grenades and kill some viets -> adds suppression,
-there is a really powerful unit: buy a recon team there are:
a 3 men recon group, a 2 men enginers group, an FO
group and a "recon Sniper"
This "Recon Sniper" carries a satchel charge, so 1 recion sniper bought= 1 spider hole dead, with 10 tests, I got 9 success with no loses (against a single spider hole), 1 time my sniper did noy hit with his satchel, and after delivering a covering fire from him, the enginer squad destroyedthat spider hole...
So retry that campain and when finished you'll have learned much about the game...
good Luck
