Wrong genre, this is entirely normal in asymmetrical multiplayer.
(I do wish it wasn’t)
They general add a map every 3 to 4 months in this genre.
———
More thoughts just in general…
If I was in their shoes my plan would be to drop one larger map now. Then every month for the next 3 months I’d drop night (even if lit by fires to make work) versions of the current maps.
With the next large update in 4 months, so December.
Even that might be a tight schedule to rework the existing maps. If it wasn’t and there was time, I’d also make stripped down versions, with nothing modern. Something purely jungle, add more ground cover and emulate the first movie’s density.