That'd be great, if the M551 was still available to those clearing cities of snipers and other unfriendlies, particularly wire or laser-guided ones...which Noriega's *Dignity Battalions* did not have available, good thing for us. Given the current vehicles/launch systems available, an inexpensive unguided round for the TOW launcher with a HE or HESH warhead rather than a HEAT charge would seem to be the next best thing. You could even fire a M551 with the turret turned 90º to the side without recourse tooutriggers or engineer-prepared firing positions, though it wasn't the happiest experience in the world. I never saw it done with one of the Shillelagh missiles, however, and suspect that would have been a maintenance-intensive event.
During the closing days of the Second World War, 1944-'45, Patton's Third Army claimed the best tool for mopping up those urban areas that couldn't be bypassed as per Third Army SOP was the 155mm self-propelled howitzer, at that time most commonly found mounted on a Sherman tank chassis. 120mm mortars carried aboard Strykers seem an unlikely replacement for that role, though there are some Soltam and Tampella direct-fire mortars available just right for fitting on a wheeled transporter chassis.
Too, it might be possible to fit an M551 turret on a Bradley chassis as a fire support vehicle, but that wouldn't satisfy the transformational trackless tyrants. Of course, there's also the stretched M113 chassis the Finns have developed for the AMOS twin-mortar system...and there IS an *AMOS FIN* single-barrel variant mounted on an 8-wheeler.
