Mod Drop in Elite Sancutary Onslaught not as Zone reward.

[KyriaTheMystic]

Was doing Elite Sanctuary Onslaught leveling the Fusilai when on the first Zone I noticed one of the Domestik Drone units (as Zone 1 this week is a Corpus Gas City tileset) dropped a bronze mod, Repair Kit, onto the floor. I was a bit too slow to catch it on the floor however I did immediately pull up this screen (the other individuals usernames withheld because it's not pertinent). 

I don't know how this happened as no one in the mission was a looting frame. The frames being Saryn Prime, Wisp, Volt Prime, and Octavia Prime. This is also clearly not a Zone rotation reward as we hadn't even gotten to Zone 2+. Just, there it was on the ground as I was jumping around. Repair Kit in ESO. No other oddities dropped the entire mission. My End screen had a Radiant Lith relic, and Lua Balcony scene as per usual. The Repair Kit is currently in my inventory as my count has gone up by 1 (I know because the other night I cleaned up my mods converting many of my duplicates into Endo). 

If anymore information is required or desired feel free to ask.