From what I've read elsewhere the previous testing stage was using COTS hololens hardware which is not weatherproof or GI proof, and this was the first test of

From what I've read elsewhere the previous testing stage was using COTS hololens hardware which is not weatherproof or GI proof, and this was the first test of the production hardware, or at least the first version of the future production hardware, and it worked at least WRT being waterproof etc. Its still early days for that program. Note that this is not exactly the militaries first heads up display or helmet mounted display. This is "ancient" tech for helicopters and some ground vehicles with remote weapons systems. The new part of this program is the hardware is going to be dirt cheap in comparison (although still about $30K each) and its not just going to be for vehicle drivers / pilots / gunners but for infantry soldiers.