Ah, yes. In the final scene involving the torp, we get a side view, with "TORP MARK V" visible on the side. So it is a torpedo by design, unless Control decided to stencil additional markings on it.
As for schematics, Pike asks for them. We never get the impression he would have gotten what he asked for. And in asking, he made it clear he didn't recognize the weapon, nor did anybody on the bridge volunteer such knowledge. So, probably a proprietary S31 weapon.
Incidentally, what kind of ship is it that fires the torp? There seem to be at least three distinct types of S31 ship: the one seen in many episodes, with the two clickety-clack nacelles, then the four-naceller seen in the viewscreen schematic and crushed by the cleave ship, and then the drone-launching large two-naceller with straight pylons and a roll bar. But the missile is launched from a ship that appears to have a hollow bow, that is, with a large trapezoid hole going all the way through the bow. Is this one of the above three types or not?
Might be the drone-launching Reliant lookalike, since the hull sides seem to feature pits left by launched drones. Or did more than one ship launch drones? Verifying the presence of the bow hole in the drone-launching scene is not all that clear-cut: the shadows on the facets might suggest it, but perhaps not.
Timo Saloniemi