You have, 3 infantry slots, 1 vehicle slot, AND if you DEV,s like this suggestion, 1 Premium squad slot.
without premium account.
why? because it would valorize the premium squads ALOT.
this is not my original suggestion, you can find it be suggested all around it. But things must be discussed some times before can actually happen.
We need more squad slots period.
With how game economy works, having more slots means more squads that need soldiers with equipment, and grinding for that takes time or money. Literally money printer from whales that could customize more squads, would have to but more backpacks, mines, guns, granades etc.
And 3 slot means f2p have to play meta squads or suffer, making game more sweaty overall