saw there wasnt a good upload of this one so i compiled a little something together

Stealth: Trainstation (half life 2 ost)
https://www.youtube.com/watch?v=bJz5jMh-5-Y

Control: Abandoned In Place (half life episode two ost)
https://www.youtube.com/watch?v=IpLgNJRkwZU

buildup and assault (the song in the title of the mod lol (half life 2 ost))
https://www.youtube.com/watch?v=I_x1vqLA2Qw