tab.el

; This seems to do the trick:
; - displays 4 spaces (or 2) as 2-space indent
; - inserts 2 spaces and indents by two
; I know it's weird ;-)
; indent settings
(setq-default c-basic-offset 2) 
(setq-default tab-width 2)      
(setq-default indent-tabs-mode nil) 

(custom-set-variables

 '(indent-tabs-mode t)
 '(standard-indent 2)
 '(tab-stop-list (quote (4 8 12 16 20 24 286 32 36 40 44 48 104 112 120))))