When you first meet Capek, there will also be two guards with submachine guns there. Enable the vivalahelvig code. Throw a remote detonation bomb at one of the guards so that it attaches onto him. He will run around screaming as usual until you detonate the bomb. After this is done, he will not die but instead continue running around screaming. This also happens to the other guard. Note: It takes two bombs or just a gun to gill those guards.