My Problems With Hardcore Ranger

So I started the game with hardcore ranger, there are good parts about the mode, lets say taking away the hud
, cool, its more realistic and fun but it takes about realism and put just frustration for players. So my main concern about the mode is the lack of explanation it has for people, I did play the 2033 but I remember nothing.
So yeah I hop on with no clue what so ever what key does what, I think the u need to show ppl at first how to actually, recharge battery,
how to defend yourself when having a cut scene, the "tab" inventory made no sense bc u cant see shit, how does it even make sense? took me half a game to understand the invisible inventory has 4 corners, I just couldent understand why it wont change the weapons I want. I almost finished the game and my biggest question mark was,
wtf do I lose ammo so fast until I realized from some guy the there actually magazines, each time I change magazine I throw the one before away, how tf should I know that?
Plus they should have added some sort of key to check the weight of ur magazine for example, to know closely if ur magazine is heavy and has lots of bullets and so on... shooting blindly without more or less knowing the amount of bullets in ur magazine not knowing when to reload is just dumb for me and to be honest,
the mode isnt that brutal, obviously not the way it was meant to be played, just ruined the experience for me, all they did is remove the hud, maybe add some dmg. The whole game I just didnt know what I was doing bc the game doesnt explain anything.

 

But as far as I know at normal modes there are magazines arent there?