Board Thread:Skyrim/@comment-108.220.168.82-20150513023639/@comment-6881629-20150513111839

I think theres a random encounter where you find three bandits wearing stolen Legion armor (and the dead Legionnaires should be near by) but they should talk first before attacking, maybe something attacked the bandits or Legionnaires before you found them and they somehow got stuck in attack mode (just a guess though).