You must have some serious setup problems with your characters if you cant kill 3 aliens in 3 minutes and have problems with roots and snares on an adventurer. This game actually requires at las a bit effort to gear up your characters and making it easy enough for you to progress half - naked or whatever would make it dead boring for everyone else. I remember killing those aliens from daily missions with xp pistols, wish i knew what the hell are you doing if you have problems with them.