Chapter nummerierung ändern

[BarracudA]

Servus!,

Ich müsste meine Kapitelnummereirung im Format ändern, weiß aber derzeit nicht so recht wie ich das bei den Zahlen <10 und den Sections anstellen soll.

Derzeit sieht die Nummerierung so aus:
1.
1.1
1.2

2.1
2.2
2.3
2.4

5.
5.1
5.2
5.3
5.4
5.5

12
...

Wäre aber absolut super wenn ich die Nummerierung hierhingehend ändern könnte:

1.
1.1
1.2

2.1
2.2
2.3
2.4

05.00.00
05.10.00
05.20.00
05.30.00
05.40.00
05.50.00

12.00.00
...

\begin{document}

	\thispagestyle{empty}
	\maketitle
	\newpage
	\thispagestyle{empty}
	\begin{center}
	Blank Page
	\end{center}
	\newpage
	\phantomsection\label{toc}\tableofcontents 


	
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%  Imported Files	%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

	
	
	\input{COM/10/70.tex}		%Chapter
	\input{COM/10/80.tex}		%Section
	\input{COM/10/130.tex}	%Section
	
	\input{COM/20/10.tex}		%Chapter
	\input{COM/20/20.tex}		%Section
	\input{COM/20/30.tex}		%Section
	\input{COM/20/40.tex}		%Section
	
	\setcounter{chapter}{5}

	\input{COM/30/10.tex}		%Chapter
	\input{COM/30/20.tex}		%Section
	\input{COM/30/30.tex}		%Section
	\input{COM/30/40.tex}		%Section	
	\input{COM/30/50.tex}		%Section
	\input{COM/30/60.tex}		%Section

	\setcounter{chapter}{12}

	\input{COM/40/20.tex}		%Chapter
...

Danke schonmal!
(wenn mehr Infos benötigt werden bitte bescheid sagen!!!)