Scaramanga was praised as the dark inverse of Bond — just as skilled, but less morally motivated.
Obruchev realizes that it is a trap set by Blofeld to kill Bond with the virus, but he is working for someone else and has re-engineered the virus to only attack the members of Spectre.
Kristatos tells Bond that Locque is employed by Milos Columbo, Kristatos' former organised crime partner.