Follow the adventures of Sin Bearers Tactics, a group of mercenaries evolving in the near future on Earth, on 24 maps of this old tactical game. On each map you will choose up to 7 units of 10 different characters with their strengths and abilities and try to achieve the goals of the mission. Each battle will give experience points to your team, which will then develop and gain new abilities. You can choose between two user game modes, in which you will play your whole team at the same time before the enemies do the same, or an initiative-based mode, where the order of the unit will depend on their own characteristics. This must be selected when starting a new game and cannot be changed later.