Even more Zombie Tramp vol. 3 cover updates

[Rgraydonr]

The following are the correct covers for each respective issue.

#13A:

#13B:

#13H:

#12C:

#13E:

#8A:

#8D:

#8B:

#7B:

#7A:

[CLZ_Rowdy]

Added. Thank you for reporting.

[Rgraydonr]

Thanks Rowdy!