Chacun des trois personnages sera spécialisé pour utiliser sept armes différentes. En solo, trente missions seront au programme, avec un niveau de difficulté réglable alors que le multi se composera de quatre modes de jeu pouvant accueillir jusqu'à quatre joueurs en Deatmatch ou dans des "Sniper Battles".
Voir la description anglaise
In the sequel to Koei's covert ops action game, the fate of the world hangs by a thread, and a few ticks of the clock means the difference between justice and annihilation. The new Winback assault team is comprised of three young, yet combat-proven operatives led by Craig Contrell. Each team member is qualified in six different weapon types and highly-adept at CQB (Close Quarter Battle). Winback 2: Project Poseidon brings to the series a new "route" system that lets players experience each mission from the perspective of different operatives. There are 30 intense missions, multiple difficulty levels, and new weapons including the highly-anticipated sniper rifle.