Wow, nice job, very interesting expriment.
In the old Su-27 FLAKER 1.0 from 1995, you could target air-surface missiles with either guns or your AAMs. However, the AI planes could not do this. Still that was alot of fun. I used to setup a formation of Tu-95's all launching multiple Kh-55s, and taking all these missiles out with R-73s and cannon was alot of fun.
Most interesting experiment of all >> I setup a low flying Tu-22M (non flyable) to fire a Kh-15 at a ground target far away. The Kh-15 fired off into the sky, higher and faster. I had an enemy Slava cruiser nearby, just in front of the Tu-22, and the ship engaged the Kh-15 flying away from it. The Slava fired an S-300 and the SAM caught and destroyed the Kh-15. I thought that was amazing. But the developers never fully explored this, so missile vs missile combat was not overall practical.