Ok, time to finally start it. With the most serious crashes fixed and 0.30 being worked on, I think it is time to finally work on MP fix. I decided to start a new thread to have control over first post - I will post files for testing here. So far, the identified reasons of OOS are: ranged strikes (AI, only if one player sees the AI striking and the other does not) expanded mercenaries spell (will change the whole thing to RFC approach, for now just use standard spell in MP) I will check old OOS threads and look for any other raports. But if you know of anything, please post it here. Now to actuall fixing. Attached below are two files - changed CvGameCoreDLL.dll. First one, called vanilla, has ranged strikes reverted back to FfH state (ranged strikes are in dll as it is code from Final Frontier mod, just not used). No ranged xp, limited random factor, no info on who is striking Second one is simillar, but with info on who is striking added back. If you can do some tests, please run MP game and when you have OOS caused by ranged strike, check if replacing Orbis CvGameCoreDLL.dll (in mods/Orbis/Assets folder) with attached ones fix it. Please make double sure you are replacing the right file and note which of the attached replacements are you using. False reports will make the whole thing even harder to fix. Once I know if removing either of these parts helps, I will try to dig deeper. It might help if I say that 'info' file is the one compiled later, and both were made on 14 december, not on 12 as the one that comes with the patch P. You can just reapply patch P to revert to standard file. I am counting on you - and I will not be able to really test it on my own for some time.