Nope. The Sturmtiger can throw ONE weak grenade.
On topic: S-mine launchers would definitely be a lot of fun. I don't know how much damage those s-mines would deal but if a tank could just drive straight up to an ATG and wipe it with mines...
How much range would these S-mines have? How large is the affected area?
Aoe around the tank, or in front of the tank only, i think it should chop off 50% of the soldiers health who are in the aoe, this would then make it good for forcing a reatreat on already weakended squads chasing it.
The effective range should be relatively close to the tank, but i would like to see some light damage done to nearby squads aswell.
I also think it should do damage to friendly squads, making it more of a lonely tank defence weapon.
Cost could be about 50-80 munitions, depending how effective it is.