Time zones are another problem. OFPEC has never been able to get ppl to review mp missions for more than a very shot period of time. Artak is currently doing a good job. But help is always welcome.
All pending missions are available to the public for download. Once you have played a mission, you can use the comments section to post your feedback on the mission.
If you have a group you play with all the time, then why not join the MP reviewing team?