If you get DCS warthog you will need as many HOTAS buttons as you can get your little fingers at.
AND you will need a track IR to trck your movements as your head moves to replicate it in game.
That said, i have an a-10 joystick replica. It has 8 HOTAS buttons, and 50 million other switches that all have to be used while in flight (Not at the same time of course)
For example you WILL need the Coolie HAT switch, TMS (4 way switch button), DMS (4 way switch button), TRIM (4 way switch button), mouse cursos (to move around the cameras), MIC switch (3 way button, not necessary but useful), CHINA hats forward and back (CRUCIAL!!!), BOAT switch (for switchign cameras, not crucial), AIR BREAKS (2 way switch, crucial), FLAPS (not crucial), Autopilot (not crucial but helluva helpful), and Nosewheel steering(not crucial).
Etc and so forth... So the crucial ones are ones you WANT and NEED on the stick so you never have to take your hands off the stick. Non crucial ones are nice to have on the stick but you can use keyboard shortcuts.
So what I am trying to say is, you will need a stick with a **** load ton of buttons to compensate, and the more it has, the more enjoyment you will get out of this game and other serious flight sims.
my recomendation is the X52 saitek Pro, which I used for DCS when my Thrustmaster warthog was being repaired, however the one you are talking about seems to have just about enough stuff on it to fill up nicely, so go for it man. But you will definitely want that TRACK IR as well, with clip.
Compare your stuff to my stick, if equal or greater, your good to go:
