Would love some oppinions on this if you dont mind.
First i think it should be in ~Media section, since you posted video.
Second it would be good if you explained exactly what made you thinking that person is cheating?
I don't see any cheat there, just regular raid (but it is late, and maybe i am too tired to notice it). Looks like you have Minimum Graphic Quality, so you didn't saw Santa Boom rockets (i think i saw him there) which targeted middle of base, and it may looked like center of base was receiving damage from no source.
But as long as you will not tell exactly why you think he is cheating, we can only assume what you mean.