Update to Beta 0.51 — Zombiepede Steam update #551916

A lot of improvements came to Zombiepede: - Wave Counter and Health Info for dark skeleton waves in late game - multiplayer challenges became more difficult - bug fix: mines were exploding when placing in friendly fire levels - bug fix: Lich was flying out of the level in the Event Challenge - Some changes for the greneade launcher updates: for example Speed updates decreased and chances for legendarys to epic - New Campaign (4: Hardcore) with 5 new difficult levels added - removed sound spamming of fire golems in late - added button info for Event challenge - dark fire golems added to late game - late game changes to weaker enemies: appear less often for better performance - new Weapons: Lightninger and Golden Gun - new Air Strike offer - made changes to pistol class and general updates: appear more often in early - Death increases the reroll cost by 1+20% now - added Blast upgrade to M...