What Survivalist really needs is something that makes it stand out on its own merits, not being mediocre at everything. As it is, it's not even mediocre at everything, it's just mediocre at the few things the overly restrictive skill tree lets you choose. I don't propose anything ground breaking like allowing more than 2 skill choices per level, I just think the skills need to be massively reimagined. Most importantly, Survivalist should be a jack of all trades, not a jack of 2 trades. It shouldn't be as good at any specific role as the specialist perks, but it should be a star at general roles that no other perks specialize in. If its role is to survive and make do with what you have, you need skills that apply for any loadout, not skills that restrict your loadout.
The first and most important thing that means is no perk-specific bonuses. The increased blast radius is an egregious offender, but the level 5 skills are nearly as bad. They should both be rolled into a general tactical reload skill that applies to all weapons. There should also be a skill for +damage for all weapons (but less effective than the perk specific ones), increased survivability like HP, armor, speed, health regen. Weapon swap speed. Ammo capacity.
But what should really set Survivalist apart is the ability to do general non-weapons-specific things better than anyone else. Melee bashes do extra damage and can knock down zeds. Get extra ammo from crates. Get HEALTH from crates. Trigger zed time by getting headshots in midair. The sky's the limit. Just please do something creative that is truly unique and effective for any (or most) loadout. I have faith in your creativity, but I know there's no way to get it done before November 18. Delay Survivalist, I don't care. Or at least be willing to completely overhaul it after launch. Just please, PLEASE don't release the half-assed Survivalist you have now just to have 10 perks for launch, and move on to other things. You have an opportunity to make a truly amazing and unique perk, but you're not there yet and it won't happen by November 18.