Wow, Armin is toast.
In all seriously damn I did not expect that. Coming off last week this is easily the most gut-wrenching episode since the first episode of S1 for me. The Scout won the war but boy did ever came at cost, much higher than they ever had with nearly all the troops annihilated. Like with blakstealth Armin wasn't my favorite character, but I did like him so it's a shame to seem him gone. It will be ard to see Eren and Mikasa cope without him.