I just build my factory and tried to attack the enemy in the first mission of the second campaign. There was a small base to the right: 2 small biters and 2 small worms. I have killed both biters and one worm, after that, one big worm spawned immediately. Two shots and i was dead. wtf?
the "two hits = dead" was not the problem, just the spawning: there were just minor enemy, which don't pose a threat, and BAM - big worm. Any bigger enemy is not fair on this map, because you can't research further technology to defeat the enemy.