|DOMINATOR M2/12 multi-calibre modular trailer-mounted multiple launch rocket system (122 mm)|
|262 mm version|
A salvo of 240 122 mm rockets fired within 30 seconds at up to 40 km range (unguided).
Alternatively, 16 262 mm rockets fired within 16 seconds with a range of 65 km range (unguided).
Imagine this being a project of the U.S.Army - the internet would go nuts about it, debating how awesome this is.
Instead, it's a Serbian MRL design and (even) I didn't really notice it until recently. It's been published in 2013, though.
This is one possible answer to the question what to do with tank transporter semi trailers once your tank battalions have been deployed in theatre. So far I always thought that those that can be spared from hauling disabled vehicles to repair shops or the industry could haul bulk supplies such as fuel or ammo instead.
A single MRL with the firepower of six normal calibre (not MLRS) MRLs is an interesting concept as well. It's kind of obscene in its own way.