Spoiler Thread: Avengers Infinity War

So I saw the movie on Saturday in 3D and wanted to share my thoughts and some questions for some of you comic book guys.

First off, I really liked this movie and it was super easy to watch and enjoy. It didn't feel like 2 hr. 40 minute movie and that is one of the best things you can say about a movie. When it ended I was like "oh that's the end, I could keep watching for like 2 more hours." So really fun.

I really enjoyed some of the pairings that they put together. I especially liked Thor and Rocket Racoon. I think it was just the dichotomy b/t the superhuman God Thor and the small crazy 'rabbit' as he called him. Plus I thought the little dialogue b/t Thor and Rocket was really heartfelt and deep. Thor was actually questioning his role in the world and his fate. He actually stopped for once and reflected on all he has lost over the years and why he does what he does. He seemed lost and Rocket maybe just gave him a nudge back to the path he is supposed to take. Going to the forge and getting a new weapon almost re-energized him. And Bradley Cooper brings such weight as rocket that to me he is one of the most under rated characters in the MCU.

I also really like the spiderman/Thanos interactions. The pure snarky, smart arse teen talking smack to the giant ultra serious Thanos was really good too. No one has probably ever talked to him like that. a young teen not fully understanding the gravity of the situation was nice.

Lot's of good stuff that I liked and could go on but don't want to ramble. I have a few questions about Thanos though. So what 'race' or kind of creature/species is Thanos?? Is he a demi god like Thor? Or a human like species or what? Cause it seemed like even before he got all the stones or any that he was pretty formidable and had immense power.
And I think he said he was from Titan. Is that his home planet? is that the 'race' of species that he comes from? are the people following him and fighting for him from the same planet or species or do they all just choose to follow him?

I obviously didn't read the comics so I just wanted some background info on Thanos and his motivations.

Also, so Wakanda is super advanced technology wise but did that not make more advanced weapons than spears and shields? I saw they used some rifles at first but then stopped and charged. Do they not have tanks, missiles, bombs, etc? Seemed they could have killed much more of those creatures or at least had better defenses. Just a nitpick though.