That would work, a modified “safe” haven.
I’m not a programmer, but ut can’t be impossible.
You’re thinking of ways to bring save zone players in the game without having them lose everything and still prevent looters.
Having a threshold on save zone troops (like we have of rss in storage) must be possible.
Possible and practical are two different things - whether its dev resources, game performance/phone resource hit, or various other considerations. It’s dangerous to tell people if something is actually possible, because then they’re more likely to demand it - better to just not give the options.
But it’s possible…