Some questions about the RNG

[Coal48]

I finished to game and would like to start a "new game+" with specific gear, grinding/farming is something I really hate in games but I don't really have a choice, so I want to at least know exactly what I'm doing.

From the weapon guide here:
http://steamcommunity.com/sharedfiles/filedetails/?id=701684401

It's possible to know in what area a certain item may drop but...
is it mission specific? (not referring to "epic swag" which I know is fixed)
do the later missions have a higher chance of dropping more powerful items?
Is the amount of items a mission has, fixed or random?
Is there any way to know the droprate of an item? aside from the general fact that (rare) items are rarer than regular ones?

I want to get the "Vectron Beam", aside from knowing that it's in the Deep Space area, what mission should I do over and over again to try and obtain it? Also looking for the "Exoskeleton" and "Dancing Shoes"

[Metalliferous]

i find just any mission with heaps of swag bags will get you items at random (repeated sopme missons for 3 stars) the only difference i see is the tier of items you get.
so say dancing shoes is T5 you want to do missions with t5 loot(as far as i can tell)

[Coal48]

Originally posted by Blamzite:

Okay, so you do think that the item tier depends on the mission tier, makes sense, that's why I guess in early Deep Space for example, you can find "Blaster" (tier 7) and later on, you find "Blaster MkIII" (tier 9)

Problem is that missions don't explicitly state what tier they are, so you have to finish them and look at the items tier to know (which varies), better than nothing though, thanks

[Metalliferous]

Every 3-5 missions seems to bump up thr item tier
I found my dancing shoes towards the end of the royalist sector (rough area to start) haven't finished the game as of yet so cant help with vectron beam or exoskeleton