China also operates mostly Russian equipment or copies of (license produced) versions of the same. Recently, it was found that apparently due to corruption, their ballistic missiles were filled with water, instead of rocket fuel. LOL.
IMO they would fail similarly to the Russians along with the fact that they are not a very combat experienced army. Their troop morale is nothing to write home about either. However all that said, they are still a very large army, from a very large country, with massive financial and natural resources.
I am not sure how much shock and awe will really have an impact, or if that even is feasible with countries like Russia and China. Shock and awe is possible only when you have air superiority, which the US had with Iraq. However with the massive airforces of China and Russia, along with multi-layered air defences, long range radars, long range SAMs, satellites and their own GPS systems, ballistic missiles that can reach every corner of the globe etc., you'd have to press massive military assets against them. That is very cost prohibitive. So even if the US is able to establish air superiority, I think they will only be able to do so with massive losses, to the point shock and awe will not be feasible. Anyway, I am not a military analyst, but this is my reasoning.