re: Yang waves from inside capsule
Yes, he managed to get out on his own, I heard.
When Voskhod 2 landed (with Leonov and Beliaev) in 1965, they found themselves way off target and had to wait 2 days for the rescue teams to get them back. Meanwhile, the capsule was surrounded by wolves.
The Russians have guns (perhaps since then) for their landings in the steppes.
I don' think US astronauts had such guns, except one capable of sending a flare to help localize them on the sea.