Thanks to all for your help !

I found a vanilla map which is just perfect for 1v1 multiplayer : Ketanot Hills. Each player has a limited drop zone, there is gold and the map is "finite", which is good.

I'll just edit it so that there are premade bunkers and brains for each player.

I think that all players will be allowed to use all the vanilla content.
Giving a race for each player might be unbalanced. I don't think Ronins are as strong as the Coalition or the Dummies...

If you have any other ideas, I'll be glad to read them.

Ya might want to add the ol' no crab bombs rule.

No crab bomb rule ?

What do you mean ?

Don't fill up a craft with ~100 crabs and order it.

Ah yes, of course !

What do you think of "Craft manual control" ? I mean, you load a dropship with a bunch of fully armed soldiers, you take control of the craft so you can drop the guys out of your own drop zone. You can be on the enemy's brain in seconds but it's risky...

Should I forbid it or not ?

Also, do you think the players should have starting units or just a brain and nothing else ?

Manual Dropship for bombs only [vanilla bombs only]

A brain and 2 robots armed with ak-47s

I think you should go by faction. Some people prefer to be at a disadvantage.

In fighting games, frequently people will choose "crappy" characters on purpose.

Then they just can buy Ronins with blunderbusses if they want, I won't forbid them !

It's much more fun when you actually have to fight to survive, as opposed to just blasting apart your friend. Make it so you have slightly more starting gold, use that gold to build an elaborate base, and have two teams, offending and defending. The offense might have a small temporary base a short while away from the fortress, and you both get a set amount of time to get everything set. Then have the offense just continue to flood the defense, until either A) The offense has reached a certain amount of deaths, B) everyone on defense is dead or C) you can allow defense to buy troops mid-battle as well, and then it goes on forever. That's what I do.

I finally made a map for 2 player mode.

What do you think about it ?

The map is pretty good, although i think more doors are needed.

What is the best way to play multiplayer in terms of controls? Gamepads? I have xbox controllers I could use but I haven't experimented at all yet.

With more than 2 playing, Xbox controllers are definitely the way to go.

Gamepads all the way.

Just make sure you have a test run without killing just to get used to the controls, to prevent ragequit.

XBox controllers are awesome, even in one player. They make it really easy to jetpack and walk backwards, which is harder for mouse, and impossible, to my knowledge, for keyboards.