Well, given the need for protected mobility against near-peer adversaries, obviously the shark won't be able to exist on the modern battlefield without a vehicle. It's all very well having a highly-trained airborne shark that spent extra time doing P Company[1] (although reports from test week indicate that they had an unfair advantage during milling, and they kept accidentally biting through the ropes on the log race) but what do they do once that Russian UAV flies overhead and the Divisional Artillery Group is about to give them the bad news?
Nope, the shark obviously has to sit in the gunner's seat of the new Warrior, ideally in the Pl Comd's vehicle. That gives it hatch access so it can use its "LASER beam". With the added advantage that whenever the Pl Comd has a bright idea, there's an instant veto available.
If the RAC adopt a similar crew principle,
"bitten by the turret monster" takes on a whole new meaning...
...I also give the whole "armoured sharks" thing about a month until
@stacker1 is complaining that
"Zese Sharks, zey are Crap" before suggesting that they're always off on some diving expedition, and those pathetic fins make them useless in the stores...
[1] It also allows DInf to declare that there are now females in the infantry, albeit with a slightly toothier smile. And fewer harassment problems.