New batch of ideas

[server]

Please sorry, If any challenge is repeated

1) Sprinter
Use full stock of sprint 1,000 times
Reward: Longer sprint (1-1.5s) or Sprint little faster

2) Use 'Restore Ammo' 500 times when your weapons fully discharged (each weapon have 0 ammo, player must have 3 weapons)
Reward: Restore ammo restores weapon magazine (all 3 or only 1 in hand)

3) Place (or if zombie break she) 10,000 usual Barrels
Reward: Usual barrels more resistant (Maybe so they will be used more ) 
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Just idea, I don't think anything will be implemented:
4) Complete 'Mr. Ammo'. Place 4000 Ammoboxes on Barrel
Reward: Ammobox stay longer

5) Complete 'Doctor'. Place 5000 Medkits on Barrel
Reward: Medkit stay longer

6) Complete 'Intensifier'. Place 3500 Damage Boosters on Barrel
Reward: Damage Booster stay longer
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7) Use Defence Bubble 500 times for protect a Teammate from Blue Orbs by Helga
Reward: 20 coins, 200,000 UpgradePoints

8) Use Defence Bubble 1000 times for protect a Teammate from grenades by Helga (1 hit grenades = +1 for progress) 
Reward: 30 Coins, 400,000 UpgradePoints, 1 SkillPoint

9) Add product to Shop: +1 Battery (1 Coin) (To adjust battery ip to round number, f.e. after XMAS) 

10) Immortal Champ
Complete 'Immortal' and 'Champ'. Win 5 games a raw without deaths. Join before the game starts. Don't rejoin
Reward: 40 coins, 400,000 UpgradePoints, 1 SkillPoint


Helga Hater II
Complete 'Helga Hater I'. Kill 25 Helgas. Progress will full reset, if you die
Reward: 150 Coins, 1,500,000 UpgradePoints, 5 SkillPoints