Try putting in your old graphics card & see if that works, also if you have 2 sticks of ram, take one out & trial each on their own/or try old ones

Multiple disc's - you had it easy if that was your main gripe lol

sounds like you missed stuff like having to create boot discs to change things such as extended or conventional memory just to get the game to work

don't knock the No one lives for ever games till you've tried them!!

consider:

Saints row IV (not played myself)

No one lives forever 1 & 2

Far Cry 3: Blood Dragon

Agree with Butcher Bay & SWAT, both VERY GOOD, if you're going to try Fear, the original is the only good one really, 2 was meh & got it worse after that. Of the type of game you're looking for SWAT/RB6 is probably the closest fit & there isn't much else that's any good that I'm aware of.

others you could try

Hitman series

Ghost Recon Advanced Warfighter

Splinter Cell Series

No one lives for ever 1 & 2

Also consider Hidden & Dangerous 2, yes its war but the setting.style (Tactical SAS style operations) & the freedom you get make it a must play. Its one of the best games I've played.

You could take a look at Rodina, its a procedurally generated openworlds style space exploration/rpg (albeit early development)

THIS WITHOUT QUESTION

original Microprose game on the PC/Amiga was even better

try Running With Rifles on steam

temple of doom......oh wait