I'm not using missiles anyway as they are crap, i rather HAVE some more conventional firepower, that shooting money into space for no effect
And, generaly, I'm against mods that just change prices and rewards and such, it's hacking or cheating, but not modding ...modding is about doing something creative, expanding the game, not making it a joke ...
But, to get back to the topic:
The interesting point would be to be able to choose a faction, home base and model when you join create a profile. But that probably needs some special code, that probably istn't there ... so, it's not possible ...
With the Pirate Mod all players are still on the same side ... just, this time everyone starts as a pirate ...
What might be possible is to create a profile, change the inis, then create another profile. This way you could have players srtart on different sides, but it would probably require the server to be restarted in the setup process and only be doable in a controlled team game where everyone knows when to join the server and such ...