Can a 'lone wolf' soldier be mind controlled?

I'm about to start a new game, and I plan on getting the Lone Wolf achievement.

Question; if you only have one soldier on the field (either by choice, or because the rest die) - can you still be mind controlled?

I was going for this achievement on classic difficulty and when my soldier got MC'd by an ethereal (with 2 Muton Elites running around) the mission ended immediately.

I've seen my sole remaining soldier get mind controlled before, and then be returned to me a couple of turns later. On easier difficulties this is more survivable, since mind control might just move you into a stupid position.

In my case, I was mind-controlled by a single remaining enemy, who decided to make my soldier hide around a corner until I eventually got the chance to come back and get the kill.