Moar axis fanbois butthurt and tears incoming
Seems a little ridiculous, however, when every rocket that hits a truck will deal 80 damage and you have 30 rockets inbound. Even the Calliope has damage reduction penalties against production structures which most other heavy artillery units don't. Of course there's scatter so it seems unlikely unless you rolled it up at short range.
It is strange, though. The rockets have a better AOE damage profile than the Katyusha, why? Shouldn't it be worse given it's cheaper and meant to rely on saturation fire?
Katyusha Damage Distances: 1/0.35/0.15
Land Mattress Damage Distances: 1/0.4/0.25
Katyusha AOE Distance: 1.5/3/4.5
Land Mattress AOE Distances: 1.5/3/4.5
Both Deal 80 damage.