although it would probably have more luck element, reading the narrative seems like each tank is just 1 vehicle. So having just 1 life (0 silohouettes) per tank would be more appropriate. Just 1 medal each I guess, even ditched.
Alternatively, 1 A7V with 2 silhouettes vs 1 Brit MkIV male with 2 silhouettes.
The infantry seem to have no real purpose beyond being easy victory banners for the tanks
"Feed the troops on victory"- Gen. Sir John Monash