Special Forces vs Zombies description

Features:
- 8 soldier with different skill and strength.
- 9 type of zombies with different ability (freeze unit, suicide bombers...)
- 3 skills you can use.
- Diversity upgrade systems (health, damage, range, critical...)
- There are many diversity quests to earn more gold and gem.
- Get your free ward every day.
- Over 40 level. The difficulty of each level will be increased, requires you must have a great
skill to complete.
- You will get gem and gold after complete each level, the reward will be increased after
each level and you will get more reward if you complete the level with more star.
- With the library system, you view detail of zombie's information, this will help you have
reasonable tactic to kill every zombie.