Soldiers have been used in several places throughout the series, usually to stop the protagonists of the Story from succeeding with their set objective.
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During the events of Scotland The Brave, they attacked the Russian Soldiers occupying the island of Urnsay. Although they never actually appear during the mission, they were available in Arcade Custom.
1924, Russian Soldiers[]

A group of Russian soldiers occupied the island of Urnsay during 1924 and were under attack by the British Navy during the events of Scotland The Brave.
- Comrade Papadov
- Deep Diver
- Fergal Stack
- Ivor Baddic
- Jim Smith
- John Smith
- Pulov Yuran
- Warrant Officer Cain
- Warrant Officer Keely
1969 - 1972, Khallos' Henchman[]

Khallos' Henchman were soldiers only used by Khallos. They are known to have been around before 1969, as the Henchwoman were only added, but evidently, they were later dropped within the three intervening years. The two different times Henchmen appeared, they had two uniforms, and rather the better units being known as elites, the supposed elite unit, the Dark Henchmen, they were just those among the first to get their new uniforms.
1985, SWAT team[]

A SWAT team was deployed to an abandoned Chemical Plant to retrieve a case of stolen jewels that the Story protagonists - Fingers McKenzie and Ravelle Velvet - had left there. However, the two thieves later returned and fought through the team to retrieve the jewellery.
1990, Russian Military[]

The military were at large, and were set into ranks and forces, though a lot of them stayed around the dam. During the Siberia mission, the Arctic Force guarded Oblask Dam, and later the Special Forces were deployed to stop Ilsa Nadir and Gregor Lenko from passing through.
2000, Soldiers[]
Though there are no known details about them, a group of Soldiers were deployed at the Docks to stop the Story protagonists - Jacques Misere and Olga Strom - from picking up the ransom. However, they failed and most of them were killed.
2401, Spacetime Marines[]

The Spacetime Marines were an organisation on Earth in 2401 to rebel against the TimeSplitters, and appear throughout the second and third game. Among the group, Sergeant Cortez, known as their best marine, fights with them.