I came across a press release PDF from Rheinmetall that details the Boxer's upgrade to A2 status, especially for the Command vehicles:
The upgrade of the chassis to A2 design status includes the
“Fit-for” driver visualization system installation kit, modification of the exhaust gas and cooling
air flow, repositioning of the towing cable and the driver’s station, and covering of the rear spotlights. In addition, labelling in conformity with the Bundeswehr’s Automatic Identification Technology (AIT) is being introduced. Furthermore, requirements generated by the safety workshop are being implemented, including an ABS function check and monitoring of the differential lock.
Modification of the command vehicle module to A2 design status encompasses installation of a fire suppression system; AIT labelling; a remotely controlled FLW200 weapon station that can be operated from multiple locations in the vehicle;
common displays for the vehicle commander and section leader; transmission of the video signal from the driver visualization system to the commander’s station; as well as alteration of the external storage capacity, antenna configuration and loading. Additional components will be integrated into the vehicle’s IT suite, including DVI, LAN, Y adapter cables and a DC/DC transformer. The upgraded vehicles will also be equipped with a voice over IP/ VoIP capability.
The VoIP capability is a question mark for me but that's just because my VoIP experiences at work have been so bad. The military grade VoIP will probably work better than the business-grade systems I've used,