For over eighty years the SBS have sailed into the face of danger. Responsible for quick strikes, reconnaissance, and counter-terrorism, they are the world's foremost marine special forces unit. The SBS risk their lives at sea and on land, undertaking the most dangerous missions. 1943, Burma. Fresh from his exploits with the unit in the Mediterranean, Sergeant 'Tiger' Tiller and his SBS comrades are now deployed in Burma, striking at the Japanese supply lines, including deep inside Burmese territory. Tiller must use the SBS's most potent new weapon – the Midget Submarine – to strike at the heart of the Japanese campaign.