Unique Attack
A quick series of attacks that can be canceled into special moves.
Evaluation
Guile's Command Normal "Double Shot". A two-hit target combo with special-cancel capability.
How to Use
A two-hit punch target combo cancelable into specials. Used to create blockstrings or confirm into Sonic Boom for damage. The second hit can be omitted to mix-up timing.
How to Counter
A special-cancel target combo — Guile will often cancel the second hit to avoid being punished on full execution (which is -6F).
Recommended counters
Because Guile hides behind a special-cancel (usually Sonic Boom), use a reversal with projectile invincibility (6F or faster) to interrupt the cancel.
If you have no projectile-invincible reversal, just-parry the Sonic Boom follow-up and punish.