Originally this is from the game Krush Kill n Destroy 2: Krossfire (KKND2), the Survivors faction soundtrack. I think it's Survivor tracks 2 and 3 that play on the map one after the other. It's an amazing classic game I'm playing again currently.
Although, I've been told this rework is what was used in IA:
KKND2 is very dear to my heart, as I grew up with it on the PS1. So enjoy.
Here's the game in action, the PS1 version is very zoomed in, but on PC you can expect a higher up resolution and viewpoint like in C&C. If anyone is looking for the game, you can get it at GOG.com DRM-Free. Multiplayer works as well. Just expect a few annoying bugs such as the random "mission failed" and "unable to build" ones. To fix them, start the game with admin priveledges and run with compatability mode for Win98. If you get mission failed half way in a mission, do another mission instead or swap save slots. If the unable to build message persists, just restart the game and reload. So save often.