Need some help with missions

Ok, i’m having huge trouble with mission 4 (think thats the one)
it’s the one where you do H after chuns fireball, can’t get it, i have no idea where the timing is.

One thing I think UMvC3 could use is something to tell you if your doing button presses in a combo too early or too late. I can’t do many combos based on the fact that its just telling me HOW to do it, not when.

Is that the kiko anken fireball? Just be close, and double tap H. As shown below, there should be a pink explosion, and the other character should fall over as though he/she got hit by an SF4 focus attack.

[media=youtube]E6esJ3X0C38[/media]

thanks for the help, this board seemed dead, but i didn’t want to post it anywhere else, seeing as it was a character specific problem.