If you've ever played Operation Flashpoint, Delta force 2 has a similar engine.
Search & Destroy consists of two bases, not necessarily with the same layout, that have buildings you can blow up. Only members of the opposing team can blow up your buildings. In all of the official S&D maps, each team had an equal number of targets, but that was not a requirement.
On the hud, you'd see a short message like:
Red Team: 0 points of 11
Blue Team: 5 points of 11
Whatever team blew up all the other team's buildings won. The only way to blow up buildings was with satchels. However, targets like cars, crates, and small guard towers could be had with LAW rockets, or even hand grenades. (not the towers).