This looks soo fun! However we cant play multiplayer due to Automatic_train_painter, RampantFixed and Clean-Console not being multiplayer friendly. At least according to the game.

So first of all; I'm really sorry that you and your friends couldn't start your multiplayer session with the modpack without further ado! I unfortunately have not yet come to test the modpack in multiplayer, because I had to upload it first so.

But that's why I immediately sat down with my roommate's account to find the trouble spots;

1. Clean Console - one of my little mods :')
   Basically said; trimmed for performance but not programmed multiplayer safe. I'll change that in a few minutes with an update. ;)

2. Automatic Train Painter - in combination with Logistic Train Network
   You can leave only one of the two mods enabled and I would call disabling the ATN the lesser evil. In my modpack (HMM Transport Trains and accordingly in AllInOne) it is as a consequence only optional, so that future downloaders don't have to bother with it in the first place.
   The update is already out.

3. Rampant, Fixed - in combination with one or more mods from HMM Improvements GUI.
   I'm still looking for the critical combination, but fix that for sure within the next hour. The solution will probably look like in 2., only with an update from HMM Improvements GUI. ^^

Update:

1. I updatet Clean Console and it's working just fine. :)

2. I also looked at their mod page to see to what extent I can inform them about it - but actually they have known about it theoretically for months, but also haven't actively done anything about it for a while. It may be that Automatic Train Painter will be permanently incompatible with LTN in multiplayer.

3. "Rampant, Fixed" actually has a problem with at least two other mods but only in simultaneous installation and only in multiplayer. One of them is Death Markers from HMM Improvements GUI, which I have now marked as incompatible, which solves the problem. In principle, there are alternatives for the mod and you could have also fixed one of the other problem areas, but actually you do not need this functionality, because the death location is also marked in chat.

In summary, the HEAVILY MODDED Modpack is now playable in multiplayer without any further problems for the time being.
If this changes, be sure to let me know! ^^

Ha! That was incredible turn around time! So far we have been really enjoying the pack! Those early biters are killer though. Literally. We lost an entire first playthrough after about an hour because we were not prepared. But now that we know guns are important it's really fun.

Oh yes! If you want to balance the start more sensibly, you have to select the Space Exploration Standard when creating the map and then set the time factor to 1 (SE+K2+BZ is really heavy), the environmental pollution factor to 1 (or 2 if you want to use less Tiberium) and the destruction factor to 20 ("Rampant" is really rampant) under "Enemies".

I haven't found a way to set this automatically yet, so you don't have to go through a "learning run" first like you did. xD
But you're right, if you want to play with enemies, you have to adjust your 'mindset' properly first. But I hope it continues to offer you a motivating challenge! ;)

But in the meantime I could add the info to the FAQ! So thanks for the feedback! ^^

Hello, I may have forgotten how to update properly, but Clean Console is still giving my group problems when joining. All mods are up-to-date (to my knowledge).

Hmmmmmmmmm okay, I may look it up asap; For now, deactivate it. ^^'
Can you describe the problem any further? Do someone uses the old version of CC? Did your map started with the old version?

When do the problems occur? In the moment of joining?

May you've installed additional mods? Can you list them?