Yeah. The MSVS is actually an SMP-SEV . We bought enough for all the M777s. I believe it has a data link that ties to the DGMS on the gun but not a lot more. Before that it was HLVWs as the gun tractor and ammo hauler. They only have room for three of the crew in the cab and I think generally they don't have armoured cabs.
I believe there is a UA Kit the CA got for some of them that is for the cab, threat dependent.
Not wanting to swerve heavily into the Artillery topic, but I think the issue is fairly relevant to Armour and Infantry systems as well so here goes.
I’m of the opinion that the light towed guns don’t need armored gun tractors.
The goal of the light formations is mobility/rapid deployment - or when faced in situations that don’t allow for that - then you need to dig in.
If in a COIN type environment, the guns get escorted by LAV or TAPV (and you can toss the crew in a ASCV whatever) while the gun is driven somewhere by the MSVS (why is that giant thing a gun tractor?).
Or flown somewhere by a Hook.
Or towed by a BV if in the Arctic (and hopefully you have a ski kit for them too)
In a LSCO, they are going to need to dig in for protection, not drive around on the open. This is also why I’m a fan of tracked SPA for mech/armored formations. Rockets in less fussy about as they are DIV and higher assets - and the longer ranges mean they aren’t going to be used inside CB range, and the only potential small arms threats are from enemy SOF or ‘friendly’ ND’s.
You need to tailor your force structure to the requirements of the role they face.
You are aren’t going to put infantry or armoured troops in GWagons to assault as a combined arms unit, (well I hope you won’t), that’s what MBT’s and TRACKED IFV’s are for.