4-space indents, but two of those make a single tab.

By the way, I just hit tab, not four times space bar (Actually, most indenting is done automatically by vim's smartindent). Mcedit handles this through the "fake half tab" setting, vim does by these lines in my .vimrc:

set smartindent
set tabstop=8
set shiftwidth=4
set softtabstop=4
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- Yes, I reinvent wheels.
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