Team 17

Team 17 is an achievement in Iron Marines. To complete this achievement, make your way to the third level and work through it until you reach the last fell refinery. On a ledge to the right of a screen there will be a worm. Simply tap the worm and it will lob a 'Holy Hand grenade,' doing a significant amount of damage to any enemies in it's area of effect. After it has been tapped, the worm will retreat behind the plant. Simply wait for him to come out again and tap it another four times to get the achievement.