Ubisoft sent us new screenshots from the PC version of Tom Clancy's Rainbow Six: Lockdown, showcasing the fourth installment of the popular series developed by Red Storm Entertainment, which will be available for PC in early 2006. Compared with the console version, Tom Clancy's Rainbow Six 4 Lockdown for PC will feature a multiplayer reward system, improved AI, a new “Free-for-all” game type, a re-vamped Rivalry Mode, new weapons, and many more. Check full story for more details.