i was playing on field tonight and came into the game already in progress. there was only 1 hotwire in base and no mines in the tunnels. i became a hotwire as soon as money allowed(fortunately our harvey was coming into base almost as soon as i started). even as i was starting to plant mines, there was a stealth and rocket officer near our entrance(back one by the barracks) firing at me. i was almost killed laying the mines. after i ran back to repair i could hear them blowing up, but no boink. i quickly bought a mrls and began firing into the tunnel for suppressive fire. after awhile i hopped out and went to toss in more mines. there they were again, obviously waiting for an oppurtunity to plant a beacon. again i took damage but managed to escape and returned to my mrls. i continued this suppressive fire and actually got a couple of boinks(or "yah baby!"). this continued for most of the game and nod never did any major damage to any of the buildings. i ended up 4th on the team with 7 kills.

so absolutely use suppressive fire!!