I really need to keep a change log or something for this. Created a bunch of zombie textures and more models in blender. Added female and fat zombies with differing, xp, damage and move speeds. Recorded a bunch of sound effects and music. Fixed up some very very basic movement AI for mobs. They can now jump. Still no path finding. Added some more UI elements, power bar beside cross-hair, health bar for mobs, gold coins, exploding limbs, better decapitation and more. There is a smallish memory leak on loading new level. Otherwise happy so far.