Hey!

I had an issue when I was playing this game. I was completed interval 6 but after the loading screen for the next mission it was taking me to the main menu with a message. (Disconnected from server) I tried to pass to the next mission but i failed, so i found a solution. I found the solution and was keeping playing and then the game just crashed with a dll error. I used the same solution and it worked again. So, you can use the same way if you get the same problem again. Here's the solution;

First of all, you have this issue because probably your resolution and graphics settings are at maximum. This game is very old so gives errors at some points because the max resolution is not supported.

All you have to do is save the game before the crash.

Change your graphics settings to minimum. (Your resolution will be 640x480 automatically.)

Restart the game and load to that save before the crash.

Pass that point where the crash is.

Save the game again.

Now change your graphics and resolution settings to the maximum again.

Now you can play the rest of the game without any trouble.

If you get the same problem, do the same method.

Enjoy!