Mestroff is killed by Steve Austin in 1976 in an attempt to penetrate the OSI armory. Mestroff is carrying experimental explosives. Steve surprises him. Mestriff runs, and it detonates.
When militant group leader Santos plans to use a Russian mobile missile launcher and American self-guided missiles as threats to benefit himself and his terrorist group, Russian General Simeon Norbukov deliberately put Andrea Mestrova to team up with Steve to retrieve weapons of their countries.