It's awesome that you aspire to do cool guy stuff in ARSOF - but I'd take it one day at a time and work through ROTC first. The Army is nothing like the movies.
A lot of people do branch infantry to go SF/75th, and aviation for 160th. With that being said, you don't necessarily have to be either of those to go to SF/75th or 160th. SF and 75th takes from all branches; and you can always branch transfer to aviation after you commission.
cb7893 hit the nail on the head. If you do go SF, you'll probably have 2 years max doing "cool guy stuff." SF operates in Operational Detachments; they have 3 different teams: Alpha, Bravo, and Charlie. If you branch transfer to SF you'll serve as a company commander of a Operational Detachment Alpha - where you will do your cool guy stuff. But after that you're pretty much going to be on the side lines, working staff and various other spots --- anything typically outside of the cool guy stuff. Sure there's outliers, but those 2 years are your golden years; after that, that's it. That's part of the reason why you see a lot of SF officers go back into conventional Army. There's other reasons, but for the sake and direction of this conversation, I just wanted to point out this sliver of it.
I can't really speak too much about 75th or 160th since I don't know too much about them. But I'll say this: if you go 75th - on average, you'll do a lot more cool guy **** over a longer period of time, since all of them (infantry and support alike) go over and do the Lord's work.
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A lot of people don't know this (and I got lucky being able to figure this out pretty quick), there's a lot of "cool guy" ish stuff you can do, without being one of those actual cool guys. ARSOF (Army Special Operations Force) -- and to the larger extent, SOCOM (Special Operations Command) is a massive place. Yes you 100% need the door kickers. But who else do you need? As Casey said, they need your sustainment (support) guys. I think I read somewhere, that for every infantryman there's 10 sustainers supporting him.
And SOCCOM is ALWAYS looking for good sustainers. A common place you'll see sustainers is in Group Support Battalion --> the sustainment unit that supports Special Forces Group. 75th needs them too; from what I've been told, if you get in to 75th you can volunteer to go on missions with 11 series - they are always happy to have sustainers come out and join the party. Unfortunately, like I said previously, I don't know much about 160th so I can't say anything for them.
Keep in mind: SF, 160th, 75th, AWG (Asymmetric Warfare Group), Delta Force/CAG/ACE (and whatever else they call themselves lol) etc -- this are just the commonly publically known SOF units. Within the Army, and across the Military, there are a lot more SMU (Special Mission Units) that don't have the publicity that these units do. And they need good sustainers too.
If you do sustainment in SOCCOM you'll definitely have a good time. You might not be door kicker cool, but you'll definitely do a lot of cool and unique things that you'd never do in conventional Army. This is the route I'm trying to go.