Addition to previous two challenges

[server]

Uncatchable
Complete 'Untraceable'. Survive 20 Waves (1 Round) without getting attention of Zombies and without getting any damage. No deaths allowed. Do not rejoin
Reward: 100 Coins, 1,000,000 UpgradePoints, 4 SkillPoints

Uncatchable Reaper
Complete 'Uncatchable' and 'Untraceable Reaper'. Kill 5,000 Zombies without getting attention of Zombies and without getting any damage. You must be alive
Reward: 150 Coins, 1,500,000 UpgradePoints, 3 SkillPoints