I just want to make sure I have chose the correct Cherry mx for my type of gaming as I'm still a newbie to keyboards!? I have chose a red Cherry mx keyboard, is red the most quietest and most responsive?
MX switches aren't necessarily the "best for gaming". The quietest MX switches are probably MX brown or MX black. Both those switch types have features that help you to not bottom out as hard as with MX red. MX blue clicks, so that's out. As for the most responsive, your best bet would be rubber dome since they're are more "all or nothing" response similar to mx blue, but without the reset point problem.
Of the MX switches, the best for most games are linear switches. Red or black preference is determined by how strong your fingers are, (though there is only like 30% difference between the two).
For RTS games, mx brown would also be viable if you like to "float" your fingers above the actuation point and can consciously press the keys passed the tactile bump each time and not just stop on it.
I don't recommend blues for gaming due to the tactility getting in the way since you often have to hold down keys. Another large drawback to them is that the point to reset the clicky part on the switch is above the point at which it clicks; so you need to pick your fingers up higher each time to reset it, and can produce keystrokes without clicking and feel like mush if you don't. Linears remove the features that complicate the keypresses and distract you from the game.
So, if you don't bottom out too hard on red, they will be good for gaming. MX black is recommended for people with normal finger strength since the 30% extra spring force helps to cushion the keystrokes. Rubber domes are also recommended for gaming, though regular rubber dome switches wear out quickly. Higher quality rubber dome switches are scissor switches and Topre.