"The Attack of the Dead Men"

Swedish heavy metal band Sabaton kidnaps Oleg "Radio Tapok" Abramov for covering their songs, and has him do one of "The Attack of the Dead Men", which concerns the 1915 German gas attack against the Russian Army at Osowiec Fortress (modern-day northeast Poland). The battle scenes are from the World of Tanks YouTube channel.

Example of:
Crossover