igi 2 mission 17 using knife

I play every stage on a separate unit project igi 2 Covert Strike igi 2 mission 17 Secret Weapons Lab using only knife Game: Project I.G.I. 2 Covert Strike Mission:igi 2 mission 17 Secret Weapons Lab using only knife 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 P