SWAT 2 was one of those games I cherished back when it first came out, playing as either the police or the terrorists. Sadly, it's not aged well and the release available here is problematic. Firstly, getting it to run on Win 7 Pro 64 bit was impossible without downloading K-Lite codecs so the videos would work and the game could actually start.
Secondly, with the game running, the lag during missions renders it pretty much unplayable. Swift reactions during missions are vital and lagging so badly, moving around and making any effective actions is effectively nullified by that lag.
It's a shame really, because SWAT 2 was originally a genuinely enjoyable game, but given the current state of the release here and how it runs on modern systems, it's not worth the time or money.