players PRM'ing

That's because the local player is constantly displayed on the map. I'm not familiar with BF2 but do they have a radar, portable or something? You would only get the find the values if the player is displayed in the radar, IF this is even possible.

I'm not familiar with BF2

Oh sure it is possible. Every player is constantly drawing in d3d at least or tracks somewhere else, thats just basics for any game. I've also found some sort of structure: at 07B6A077 instruction in EDX register there is an address of local player, then +40 bytes 2nd player and some bytes after that 3rd player, didnt test it with more players though.

Are you familiar with debugging and memory at all?
Also i didnt read that copypasted tutorial and i used radars a year before this tutorial is even appeared.
The only reason this thread is here is i dont have enough time for research and the game is really old so someone may just share some info about it.

tl;dr: dont reply if you're not into all this advanced stuff with memory.