Who wrote that article? It reads like Chinese that was put through a bad version of google translate.

I mean really who uses 'cum' in an official article (even though it's not in an NSFW context and technically used correctly). It's a word that has fallen into disuse because its 'other' use has taken over its association entirely :) You won't find this in a serious publication.

And this "Distance reconnaissance: 400 km with 20 m wrong; Number of goals can stick to 200 targets simultaneously."

Whatever it is, this ain't English.