Representing that they live in a world where everything is very limited to the point they have to fight for it, Chito didn't carry a weapon so Yuuri stole her chocolate ration and pointed her rifle at her to tell her how important a weapon is, as a joke though.

The aeroplane featured in this episode is a Tupolev 95, recognised by the nose probe and contra-rotating turboprops. The tank encountered is a Type-97 Chi-ha, while the machine gun resembles an M2 Browning with tripod stand.

The gun Yuuri picks up inside the plane is either an M61 Vulcan or an M134.