[Radoye]

MODS\STD\MODS\STD doesnt exist is it a typo? i have MODS\STD

It is probably a typo. you got the correct folder.

also \MODS\STD\MODS\STD\i18n\weapons.properties this is not a folder and I can`t paste anything into it as per instruction marked 4

It is a file that you need to open with Notepad and copy/paste the line of text from the instructions into it.

also \MODS\STD\MODS\STD\i18n\plane.properties: this is also not a folder and I can`t paste anything in as per instruction 3

Ditto