Basically what he means is we're working on a Flash that is set in WWII and fought by Chao. Here are some production pictures:

These are Grievous':

An American and a German Chao facing off


An artillery piece


These are mine so far:

A bottom view of a B-24:


A scene i did when i was bored, might or might not be used


EDIT: there was one of a German tank but it wouldnt work 
EDIT: Another pic. This is a bazooka I made.

 The latest GJ production! This idea is best described in mathmatical form, so here it is: http://www.sonicresearch.org/art/albums/Chao/n_chao.png + http://history.sandiego.edu/gen/WW2Pics6/ww2111a.jpg =