Replaced all current mortar soldiers with new ones which fire less rockets in a volley

Reduced number of Dragon Fury Pyros on Wave 2's ending
Redistributed and added more money to Wave 2

Tweaked starting timings for Wave 3 to focus more on the Mortar Soldier
Tweaked amount of airstrike soldiers found in wave 3

Removed crits from the burst demos

Tweaked wave 5's support bot spawn amounts and timings