Apart from the Austrian registration, it does look the same as the first two, complete with de-chromed spinners and additional antenna under the nose (UHF?). Perhaps they've decided to skip the temporary UK registration and put them directly on the military register once they go operational.
It's go the older Thielert engines too, so presumably one that was built at least a year ago, then converted.
Who's the slacker flying it though? He's not on the taxi-line.