Agreed. Sounds like a hoax or disinformation project.
Why bring in any CIA people, esp. some kind of security force? Why use the US Army to attack some property/site in a foreign allied country (without host country permission, assistance and possible military/security forces involvement)?
Also, if the US suffered KIAs and WIAs, it would show up in US military casualty reports, would be given to trusted US Senators (Republicans) and maybe a few Minority GOPers in the House.
And remember that the families of any KIAs would be notified that something happened in which their family members were killed. If they were listed as KIA in the line of duty, the family members would still find out from FOIAed autopsy/death notices and they would be paid for any insurance policies these soldiers had on them (automatic or self-bought).
Hard to hide something this important, esp. if it occurred in a friendly country. Deep inside Pakistan, Afghanistan, etc. - yes a covert op could be covered up with a plausible cover-story, but not in Germany.
All of a sudden Germany is a friendly country?
Wake up, Max.
This ain't your daddy's geo-politics.