Theme heard when you plant the bomb in Search and Destroy on St. Petrograd with the round victory theme added as well. I enjoy this subtle theme. It really adds to the gameplay in my opinion. All rights to Infinity Ward and Activision.
Admit it. No matter which side you were on when you heard this theme, your heart rate spiked. That and hearing crazy ass lines like, "you're all that's left! Finish the job!". Hearing that always gives me gray hairs haha.