No specific details available.. (thanks GameSpot)
La Pucelle: Tactics is a tale of betrayal and double cross, monsters in human form and humans in monster form, set in an alternate medieval Europe. The unlikely hero is a smart mouthed and undisciplined sixteen year old who just passed her exorcism exams and her comrades in La Pucelle, a demon hunting squad.
Set in the near future, in a period of planetary colonisation, it revolves around a savage conflict between forces that are still loyal to Earth (the ISA) and a separatist, militaristic faction who call themselves the Helghast. The game follows your squad of four soldiers on a suicidal mission behind enemy lines, as they fight to undermine and defeat the Helghast forces following their devastating Blitzkrieg attack on the human colony (thanks KillzoneGame.com) .