Tom Clancy’s Rainbow Six: Lockdown is the fourth game in the Rainbow Six series.
The player controls the main character, Rainbow leader Ding Chavez, and leads a single squad in real-time through each level. The player can issue orders to team members, such as to break down a door or toss a grenade into a room. Missions are broken up into linear levels, instead of each mission taking place on a single non-linear map. Lockdown also gives players the ability to save their in-game progress at any time during a level, in contrast to previous games’ lack of an in-game save feature.
Source: Wikipedia
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