What is the name of this late 90s game

Hey gamers

Back in the good ol’ 90’s I was playing this pc-videogame (maybe DOS videogame). And i can’t remember much of it, only the first mission in the game. You are a normal soldier dressed in black i think, and you start by looking at a tall building with a giant billboard atop of it, and the character you’re playing is looking at the building from another building acros the street or inside a helicopter, and you’re armed with a minigun. You then shoot some enemy soldiers who are trying to get inside the building. You also have the option to shoot down the giant billboard, which will then lead to multiply enemies deaths. When you stop using the minigun you enter the building. I can’t remember how you enter the building, it is either by rapelling, ziplining or something else. I can remember there are more enemies/soldiers to deal with inside the building if you didn’t shoot down the billboard.

I know this is not much to go on, but i hope someone can help me to locate this Old gem of a game.