After you have need a good tank
It weighs 80 kg, he get wheels, i think must exist a lighter variant for be transported.
I have seen trimmed down versions that cops can hold with one hand (the other freed to hold a pistol), although those versions may not stop AK rounds.
I think in this day and age, it won't be hard to develop a tracked, self-powered, full-length and full-thickness shield for urban combat and ship combat operations. In fact, I am a little surprised there isn't already such a product available as the wars of recent years have increasingly became focused on urban population centres and the marked increased in armed piracy hijackings.
I could quite easier see a special forces clearance squad using 4-5 of these shields for a rapid clear and cleanse op.
First 1-2 shield deploys face-on to the threat (depending on width of corridor), while you have 2-4 shields on the flanks, with shields deployed side on (obviously these shields would need a swivel function) to create a classic phalanx formation.
As the formation comes to branching doorways, the side shields keep the shields deployed facing the doorway but rotate the track section and moves off into the doorways, with troopers behind to clear side rooms while the next shields in line move up with their assigned troopers, to stand ready to do the same and clear the next side rooms the formation comes across.
Once they have cleared the side rooms, the first squads could move back and re-join the main squad and so you could rinse and repeat as many times as needed until you have cleared the objective.
If you are expecting heavy weapons, you could add ERA blocks to the front of your shields (weight isn't a issue with tracked units) and could even deploy a double line of shields to effective create spaced armour effect to defeat tandem warheads (although that might limit the fields of fire of your point men).
Anyways, this is getting a little OT so I will stop here.