Thunderbolt Ross

Every versions of them shows that they used to be enemies, but in MCU, Hulk obeys Captain America instead. In the upcoming movie Brave New World as seen in the trailer, they technically became enemies as Thunderbolt Ross and Sam Wilson respectively.

Both humans has became the hulk. While Bruce Banner was originally transformed into an uncontrollable monster while Thunderbolt Ross retain his personality as Red Hulk. Do anyone knows what’s the difference when they transform into a different colours of Hulk?

So we have Hulk, Smart Hulk, She-Hulk and Abomination in the movies now... We MIGHT get the Leader as well (since they keep mentioning stuff that happened in the first movie).. So my question is how many of the OTHER hulks do you think we'll get? None? Skaar? Red Hulk? Red She-Hulk? A-Bomb? Dr, Samson? Just wondering.