1. stay alive from all multis, friendpacks, stalkers who came to map just to spoil your game, GMers, Hnr zombies and rushers. If you manage that ->
The best way to survive a 500p game right now would be joining with friends you already know and trust. They don't have to be good as long as you guys are organized, you will dominate a map.
Most of the random coalitions made aren't organized too well or they don't trust each other, and that's a huge disadvantage oppose to a coalition that can coordinate well and believe each others' strengths. Even a GM user would have trouble fighting a well-organized coalition.
2. you join coalition , the more resources the betttr and 1 GMer is a need
I am experiencing this right now in my 500p game. It looks like randoms tend to gravitate to coalitions who have strong players in them. Unfortunately, with the coalition member slot limitation, I cannot accept all of them. And there's a big problem where there's 1 unstoppable coalition in the late game because of this system. With the availability of lending units before the update, you can trust rent your units to players who need help to survive against a more powerful nation, but with it gone, you just watch as that helpless player get eaten up by that OP player in-game.
3. If you are convinced there is noone else who plays certain type of unit better than you contact coalition.
It's pretty challenging to organize an attack with randoms in a coalition. Even if you are an excellent in a certain unit in-game, if your team won't cooperate well in a team fight, then it's no different as playing solo.
4. you ask for resources your coalition
Even if you join a coalition with randoms, it is still not a guarantee they would be willing to trade their resources to you.
5. You ask Gmer to spawn units for you
I doubt GM users would just freely spawn units for random players they are not close with.
6. you kill all those nice people in the map as you are force to do that by bytro ....
I think it's still possible to trust a friendly coalition keeping their word if they agree on a non-aggression pact, but honestly, without share map it would be a huge risk keeping a coalition near your border unchecked.
For some reason, if neutral nations are not in a coalition you can still offer right of way, share map, and share intel. So it's still possible to keep neutral nations checked, but other friendly coalitions unchecked, which makes no sense...