igi 2 mission 4 using knife

I play every stage on a separate unit project igi 2 Covert Strike mission 4 Bridge Across the Dnestr Game: Project I.G.I. 2 Covert Strike Mission:mission 4 Bridge Across the Dnestr Category;Gaming System: PC mission 1 Infiltration mission 2 Deep in the Mines mission 3 The Weather Station mission 4 Bridge Across the Dnestr mission 5 Ambush mission 6 Production Facility mission 7 Border Crossing mission 8 Libyan Rendezvous mission 9 Prison Escape mission 10 Priboi's Villa mission 11 The Airfield mission 12 Zaleb's Stronghold mission 13 Showdown at the Docks mission 14 Island Assaul mission 15 Air-Strik mission 16 The Ancient Temple mission 17 Secret Weapons Lab mission 18 Mission Control mission 19 The Launch Pad