Alright, this solo is pretty tricky to do, but not that hard to remember.
Section 1
D|--------------------------------------------------------------------|
A|--------------------------------------------------------------------|
F|--------------------------------------------------------------------|
C|---------------------------------------t17p10-t16p9-t15p8-----------|
G|--------------------t17p10-t16p9-t15p8------------------------------|
C|-t17p10-t16p9-t15p8-------------------------------------------------|
C B A C B A C B A
D|---------------------------------------t17p10-t16p9-t15p8-----------|
A|--------------------t17p10-t16p9-t15p8------------------------------|
F|-t17p10-t16p9-t15p8-------------------------------------------------|
C|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A C B A C B A
Section 2
D|-t16p9-t15p8-t14p7--------------------------------------------------|
A|-------------------t16p9-t15p8-t14p7--------------------------------|
F|-------------------------------------t16p9-t15p8-t14p7--------------|
C|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A C B A C B A
D|--------------------------------------------------------------------|
A|--------------------------------------------------------------------|
F|--------------------------------------------------------------------|
C|-t16p9-t15p8-t14p7--------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A
Section 3
D|--------------------------------------------------------------------|
A|-------------------------------------t15p8-t14p7-t13p6--------------|
F|-------------------t15p8-t14p7-t13p6--------------------------------|
C|-t15p8-t14p7-t13p6--------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A C B A C B A
[ Tab from: http://www.guitaretab.com/d/darkest-hour/288405.html ]
D|-t15p8-t14p7-t13p6--------------------------------------------------|
A|--------------------------------------------------------------------|
F|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A
Section 4
D|-t14p7-t13p6-t12p5--------------------------------------------------|
A|--------------------t14p7-t13p6-t12p5-------------------------------|
F|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A C B A
Section 5
D|-t14p7-t13p6-t12p5-t15p8-t14p7-t13p6-t16p9-t15p8-t14p7--------------|
A|--------------------------------------------------------------------|
F|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A C B A C B A
D|-t17p10-t16p9-t15p8-t18p11-t17p10-t16p9-t19p12-t18p11-t17p10--------|
A|--------------------------------------------------------------------|
F|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A C B A C B A
D|-t20p13-t19p12-t18p11-t21p14-t20p13-t19p12-t22p15-t21p14-t20p13-----|
A|--------------------------------------------------------------------|
F|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A C B A C B A
D|-t23p16-t22p15-t21p14-t24p17-t23p16-t22p15~~~~~~/-------------------|
A|--------------------------------------------------------------------|
F|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
G|--------------------------------------------------------------------|
C|--------------------------------------------------------------------|
C B A C B A
Legend:
t = tap
A = tap with ring finger
B = tap with middle finger
C = tap with pointing finger
p = pull off
Advice: Practice practice practice!