Possible fix for PVP WITHOUT changing lore or removing GC restrictions

[Nalien]

Just give us a Mercenary style system.

You're still prioritized to be put in your Grand Company, those are still there.
If the number of people queuing reaches 24/72, but the Grand Company restriction is getting in the way (eg. 9 Adders, 8 Flames, 7 Maelstrom), excess from one Grand Company will be placed in the Grand Company which requires more people.
These players who end up fighting for a different Grand Company receive different rewards. If you're fighting as a Mercenary, and you come last, you only get 50% of the last place rewards. On the other hand, if you come first? You get 150% of the first place rewards. This would be to try and prevent a situation where you fail on purpose to aid your Grand Company, instead it adds incentive to help the team you're filling come 2nd/1st. Those numbers are just examples of course, the concept is what's important here.

There. Done. Queues fixed. Doesn't even have to be Mercenaries, don't real nations tend to have exchanges where they'll work with each other? I was under the impression this was generally done because it was a great way to learn new things during peace time. Makes absolute perfect sense for the three Grand Companies to do something similar in Frontlines.