Hello all. I am around. I have been very busy with my next MMO project. (And yes I've had thoughts for a Crusader themed MMO for a number of years).
I have a multiplayer version that was created under Watcom DOS compiler and used Dos4Gw. It would be rather simple to convert to WinXp in DirectX. I'm sure the project would take a number of months to complete. I have started the conversion a few times and then something in real life always pulled me away.
We had simple 4 player (doom style) combat. You could run around with different colored silencers (8 different colors I believe) and shoot each other. The character motion was much different. In Crusader the series the creatures all walked pixel perfect. In this one the creatures skated some. This was to give a more interesting control when in the heat of battle. It needed some work of course.
The game has a built in world editor. I'm sure I could make it work in XP using No Remorse or No Regret assets. So you would have to own a copy of the game to play it... For legal reasons.