МОД: Клинок Армагеддона / Armageddon's Blade

But your reasoning made me think about moving the navigation from StandartPerk to SpecialPerk. This needs to be carefully considered.

Not a bad solution.
After Navigation, there are no other skills, which significantly reduces the variety, as on land maps it will скорее be more of a hindrance.
If you replace it with some skill from the parallel branches, it will allow you to slightly reduce the load on them and increase the diversity of the upgrade options.