Neal136
MCU Whore
In all seriousness though having just watched IW again the other day I made a point to make note of when it might have worked for Banner to change into the Hulk and burst out of the suit. Honestly I think they could have easily done it right when it seemed like they really were: Banner saying "come on Hulk, this is the last, last second. Okay screw you I'll do it myself!"
And then he goes on to fight off that big Black Order guy and send him exploding into the shield. I don't see how him changing into the Hulk would have been inappropriately uplifting when Banner himself achieved a victory at that moment anyway. Why not just show him fusing into Professor Hulk as he uses every ounce of his psyche to bring the Hulk out and then burst out, trade some punches with Black Order dude and kill him as Hulk at that exact same moment. And then have the rest of the movie play out the same with Professor Hulk charging Thanos to stop him from getting to Vision instead of him in the Hulkbuster suit.
I just think the writers/Russos overthought it and second guessed themselves too much and could have easily pulled it off if they wanted to.
My one regret with Infinity War is that we never get to see Hulk emerge and break out of the Hulkbuster armor. I like the version you came up with, but at the same time, I wouldn't have wanted to see Hulk charge Thanos and get cast aside as easily as Banner in the Hulkbuster did. We already saw Hulk get his ass handed to him by Thanos at the beginning of the movie. No need to see it again a couple of hours later.