That is because they are military in terms of organization and how they operate but their power source derives from ancient civilizations.

Like I pointed out to my friend I got into sentai often have more than one theme, when he started wanting to brainstorm a show.
Ohranger had Military, Ancient Civilizations, a dash of Nature, and shapes. Not sure if Baranoia had a theme beyond being robots.
Zyuranger had Dinosaurs sure, but also also fairy tales. You see this in how the team was asleep for so long, and fight an evil witch who's monsters are based on creatures from myth and fairy tales.
Megaranger has video games, high technology, youth, and for the Nejira twistedness.

I must admit I did love the effects work for the Dash Leon and Gran Taurus pulling the artillery units. I also always loved seeing the Guardian Beasts/Dinozords all running alongside each other. Does anyone else have any model work like that they thing was great?

For that matter what's your favorite launch sequences for individual mecha in Sentai?

Either Changeman or Flashman for me.

https://www.youtube.com/watch?v=6vCOUi9EZcg

https://www.youtube.com/watch?v=ZE-OVUY0cL0

late mid-80s rangers had cool carrierships looking back now. Just the fact that they could pull off stuff like this at the time with what they had is just amazing.

At the top of my head? Timerobo's. It's seriously cool seeing the Time Jets fly through the various timelines and its even cooler seeing how people react to them.

https://www.youtube.com/watch?v=Tz4E8_jezIQ

Time Shadow even flew past Moses for crying out loud!

If there was ever a Metal Hero style Sentai, what type of suits would be the best choice: Classic Space Heroes (the first 5 metal heroes), light armored (Jiraiya & Blue SWAT) or heavy armored (The Rescue Police trilogy and the B-Fighters)?

Side note: I was going to ask where did the nickname "Jasmine" came from. Then I threw her given name (茉莉花) on google translation and found out that, while it translates to Marika from japanese, from chinese it translates to... Jasmine :p

Would be too weird a fruit-themed sentai.

And also Dekarangers' first names are references to tea and their surname refers to mystery novel writers. Jasmine referring to Jasmine tea and her last name referring to Raymond Chandler who wrote titles such as The Long Goodbye(which Philip from Kamen Rider W is a reference to because of the protagonist Philip Marlowe). I wrote a whole post about this few years ago aaaaaannnnnddd.... FOUND IT!


But going back to your question, I would have the main roster go light armor, sixth ranger go something similar to space sheriffs, and maybe the upgrades can be heavy armored.

Funny, i heard a about a sentai called gearranger years ago. Would be somekind of gingaman with armored suits and electronic animals.

I didn't watch Ohrangers, so...

What's the exact context of this scene?
https://www.youtube.com/watch?v=sLIHO1BwGnk

If I remember correctly, Ohranger Robo was badly damaged shortly before the Ohrangers acquired Red Puncher and this scene is just them testing Ohranger Robo to see if everything was working correctly after its repairs.