Survival mode suggestions

I really enjoyed playing Survival mode so far, but it kinda felt lackluster in the long run and less rewarding at the end. I have some suggestions if you're interest adding them in the future update.
-Highscore and combo multiplier system.
-Display your highest waves/score and win/loss on the Survival menu.
-Shows all weapon/perk locations when selecting or loading the map.
-AI has a random chance to spawn an upgraded variant above wave 10.
-Money cap setting on how much money you can carry.
-NPC movement speed setting.
-Additional NPC spawn multiplier.
-Headshot deals extra cash by 1.25x
-Last enemy indicator.
-Knife auto pickup.
-Completing wave 20 or reach certain score unlocks achievements and bonus options:
*Kamikaze/unpinned: When the NPC dies, it drops a live grenade.
*Randomizer: All NPCs (zombies/soldiers) and weapon stations are randomized and give a random weapon for every 10-20 kills. Chances you get an upgrade variant to be tolerable on a higher wave.
*Limit Breaker: Increase effectiveness by 25% for weapons and perks (prices increase 1000 for each purchase).
*666 - Enemy spawn are doubled
Changes:
-Venom and Tesla gun can not be obtained from the random box in the early game until wave 10 to match the difficulty scale.
-Buff the enemy shotgun to 50 damage to pose a major threat.
-All Pistols, reduce the upgrade bench to 500, this encourages you to utilize more efficiency in the early games.
-Increase the price for the pump shotgun to 600.
Give classes negative traits that respectfully fits for the perks to compensate:
*Engineer - Power up has a shorter duration.
*Medic - Armor cut in half.
*Soldier - Stamina drains faster
*Lieutenant - 10% reduction for RoF
*Covert Ops - slightly faster mobility but at a cost of your health to 80.