Homegames Wow, that's a lot to ask of someone

Most of this your asking for is done with "scripting" not media material.
Also do some searching here on the forum, a lot of stuff is available to help you out already. Search button is at top of page

But to answer a few of your Q's
* 3rd person is coming. So wait for next BI update

*Big Scale Map, fpsc is 40x40 segments, that's it. Deal with it

*Dialog in text box, TextEase should help you out avail here...
https://forum.thegamecreators.com/thread/181108
It will display text on screen when you need it, but a text box is something you will have to make yourself. Not hard to do at all.
*First person reallistic camera with step movement. Not sure what your asking, if you mean a player wobble when walking ? then yes, its a scripting thing.
Also Homegames, look in your Doc's folder. There's a pdf named ocfpscguild.pdf (Official Community Guide) Its a GREAT resource for learning what fpsc can do.
Note: scripting question in the script forum, models & media go here. Anything else post in the Product chat

My games never have bugs.... they just Explosys's
* I lost my Big Yellow Button. Do you know where it is?