Ok now, I'm playing Zero Hour 1.4 with Destructive Forces mod and it works great.
Now,for skirmish games there is a slider to increase/decrease game speed (0-60).
But when I start challenge the game plays at somewhat slower rate,like skirmish on speed 30-35.

Is there any way to change this speed?What .ini file handles general gameplay speed?

I soo love challenges and it kills my joy playing at low speed,cause I got used to play at 45 at least in skirmish. So,if anyone knows...please respond

RE: Well,I guess I found the solution myself a simple one,but a solution nonetheless

Seems that challenge doesn't load up well in Destructive Forces,and that was causing the game to work on 25-30 fps.So what did I do?I restarted the challenge mission and bam! Full speed! A bit too full I guess,but it can be lowered in GameData.ini (Limitfps). So thats it!If anyone has this problem - this is the solution Cheers!