I too had a scavenger bot disappear.I also know when and why.I was playing through in new game+ when I came back upon the first scavenger bot you encounter.I then released it and had to quit for a moment.when I started the game back up I accidently started my original game and I had a missing bot.I then decided to switch careers to see what was up.my new game plus showed I had 3 bots with 1 deployed.I waited for it to come back went to a bench received my items then switched careers to see if the 3rd bot returned and it hadn't.I switched back to new game plus and now that game save only had 2 bots.this needs to be fixed.the game saves are interfering with eachother and the weapon crafting arena is the culprit.if I got to the weapon crafting arena with save slot 1 not only does that save end up with the unlimited ammo glitch,they all do.the weapon crafting area is somehow causing gamesave to be partially influenced by one another and theyshouldnt be.there was a time when EA was good about fixing bugs in games.now they are getting to be as bad as Activision with the "we got your money and we will fix it when we want if we want"attitude.did I miss an EA/Activision merger somewhere?