I worked this out whilst playing to the song so it must be right!!
E|-----------------| <--- With Flanger
B|-----------------|
G|-----------------|
D|-------5---------| <--- Let Ring
A|-------5---------|
E|-------3---------|
E|--------------------------------------------------------|
B|--------------------------------------------------------|
G|--------------------------------------------------------| x16
D|-------5--5--5--5--5--5--5--5--5--5--5--5----8-8-8-8----|
A|-------5--5--5--5--5--5--5--5--5--5--5--5----8-8-8-8----|
E|-------3--3--4--3--3--4--3--3--4--3--3--4----6-6-6-6----|
[ Tab from: https://www.guitartabs.cc/tabs/r/rammstein/feuer_frei_tab_ver_5.html ]
E|----------------------|
B|----------------------|
G|----------------------|
D|-----------8-8-8-8----| x4 during verse at end of each sentence
A|-----------8-8-8-8----|
E|-----------6-6-6-6----|
E|--------------------------------------------------------|
B|--------------------------------------------------------|
G|--------------------------------------------------------| x8 (dont play
D|-------5--5--5--5--5--5--5--5--5--5--5--5----8-8-8-8----| during the ahh
A|-------5--5--5--5--5--5--5--5--5--5--5--5----8-8-8-8----| hhh bit!!)
E|-------3--3--4--3--3--4--3--3--4--3--3--4----6-6-6-6----|
thats pretty much it thats all the chords that are used so if you cant
work it out then just use one of the chords and it should sound right