Basically, it's one of those little three wheeled bike things with a giant Katyusha-like rocket launchers on a trailer attatched to the bike.
It would probably never work in real life, but it is one way to soup up a boring old bike.
The idea is that the bike driver pulls the launcher into battle, detatches it, and the laucher can then operate. The laucher can spin round on a rotating 2x2 panel and can tilt up and down.
I suppose the rockets could be fired while it is moving on the back of the bike, but the driver would probably be so suprised he'd lose control and they'd all end up in a ditch.
Decal credits- Russian- Sergeant Johnson
The trailer detatched...
If only they had something like this, the war would be over so much quicker...