Most likely.
Anyhow, the Craft International stuff is fairly interesting. Chris Kyle was quite the cult of personality, especially in Texas and in the mercenary industry. Someone like Fana or Lumie might spin quite the conspiracy involving these guys. The thing is the employees of this company are required to keep all sorts of weird shit with them at all times lugged around in backpacks like they were shown wearing, so being dressed as they were was not unusual for them, at least. The more interesting question is what was a private merc company doing there in those numbers? Probably not related in any way to the bombing, but it would be interesting to see if they were hired as additional security or there schilling for their company.