Warhammer 40,000: Gaunt's Ghosts; the Lost S.
2 primary works
Book 2
This is the second in the new "Gaunt's Ghosts" sequence, "The Lost". Returning from a long mission on a Chaos world, Commissar Gaunt finds that his old regiment, the Tanith First-and-Only, has been redeployed under a charismatic new commander. As the fighting becomes bitter, Gaunt is finally reunited with his men as the Imperial forces make one last desperate attempt to hold the line against the invaders.
Book 3
Still haunted by his lengthy mission behind enemy lines on Gereon, Commissar Ibram Gaunt heads back with the Imperial crusade army to liberate the Chaos-held planet. Having made contact with the local elite guerilla forces, Gaunt and the Tanith First-and-Only find that the brutality of the 'liberation' pitches them into opposition with their commanders, who believe victory must be achieved at any price, no matter how cruel. All bets are off as Gaunt and his men are pitched into direct opposition to his commanders!"