I don't understand the mechanics fully yet, so if units lack abilities and alternative attacks then this is irrelevant.
My impression of the Crocodile Churchill tank was... Thats some range for a fireball. So I wiki'd it. And I found something much more interesting.
"The flamethrower could project a "wet" burst of unlit fuel which would splash around corners in trenches or strongpoints and then ignite this with a second burst."
AoE soak effect.. cooks all infantry and light (dmg medium) vehicles. Tell me it wouldn't be sick.