Chain Intro Tab

I couldnt find any tab for this on the net, so i tryed my best to make it myself.
Here is the result but i am not 100% shure of it.
 
E|--------------------------|-------------------------|
B|--------------------------|-------------------------|
G|-12-------10-12------12---|----------10-12-10-------|
D|----10-13------10-13------|-13-10-13----------13-12-|
A|--------------------------|-------------------------|
E|--------------------------|-------------------------|
 
Powerchords:
C-F-C#/Db-C and after that C-F-C#/Db-Bb
 
E|--------------------|--------------------|
B|--------------------|--------------------|
G|-555----------------|-555------------333-|
D|-555-3-33-6-666-555-|-555-3-33-4-666-333-|
A|-333-3-33-6-666-555-|-333-3-33-4-666-111-|
E|-----1-11-4-444-333-|-----1-11-6-444-----|
X