Delta Force's programmer was really boss (Daniele Gaetano), a physics guy turned coder if I remember correctly. He rewrote Voxel Space to be true'ish 3D and not fakey 2.5D. He explained the innovative backtracking he had to do on the ray caster to make that work, implemented mipmaps in the voxels, very very clever guy. One of the friendlier guys I've known in videogames.

I did the first version of the matchmaking for the network play in Delta Force but didn't make it into the credits because I quit before it shipped. My psycho coworker built a custom web browser(!) that integrated directly with my from-scratch matchmaking server. At least they let me work in C for that project; most everything else I had to do for them was assembler because that was not a "sissy" programming language. That server code was by-far the coolest thing I wrote for many years afterward.

Unfortunately, my server code couldn't handle more than like 32 concurrents because the Windows NT 3.0 kernel would BSOD with more. My (extremely grumpy) manager and the Sega Saturn coder called me a few days after I had quit to ask how the code worked. I suspect I left data in the socket buffers too long (was trying to batch up my message broadcasting work at regular intervals) and the kernel panicked over that.

I recall learning later the TCP/IP stack was homegrown in NT by Microsoft at that time and they licensed a good one for later versions, so I can't be blamed, it wasn't me! :D