The progression system must be updated too and filled with new weapons, armour, just like weapons and armour must be renovated and be more flexible, having actual mods and perks. And stratagems must be revisited, because, even to the fact that they are great as an idea, most of them simply useless especially on higher tiers. And players, as i see it, are tend to sit somewhere between tiers 5 and 7, where are simply not enough good and reasonable weapons and support for them, just like there are, basically, few builds to play with on last two tiers (that's why, BTW, people got so much pissed off after railgun nerf, 'cause it is simply essential to high-tier gameplay, and cannot be equally altered with something else). Altogether, I think divers must have capabilities to bring more types of assets, modifiers and stratagems with them one the battlefield, and have additional clothes, ammunition places besides backpacks: of course, after developers will invent something new and more.