What is a good counter for Zerg against Marines, which are upgraded from the original StarCraft?
Zerg actually have a few options that are quite effective. Zerglings can catch Marines out in the open and surround them relatively easily. Secondly, Banelings with the burrow ability are also very effective. There is nothing more gratifying than watching a group of Marines walk over a burrowed Baneling. When it unburrows – BOOM! Another counter that can be used are Roaches with burrow. A player can burrow a Roach at low health for it to regenerate back to full health in seconds, at which point it can unburrow and begin attacking the Marines again. In late game, Infestor’s with their fungal scourge ability, which causes a biological unit to take damage over time until the unit explodes and does an area of effect damage, decimating groups of Marines easily if the opponent is not fast to react. Additionally, Ultralisks with their new cleave attack as well as 200 more hit points from the original StarCraft also make them an excellent counter to massed Marines.
