已可使用關平Complete Target 1, "Kill Cao Pi in under 5 minutes.", at the Battle of He Fei as Sun Jian's forces. Run north, assassinate Cao Pi, finish the level. Nothing especially tricky about this, other than having to unlock this scenario by playing through Sun Jian's Musou. Please take special care to note that this MUST be played as Sun Jian's Forces to unlock Cao Pi. Cao Pi appears in other Battle of He Fei scenarios, but only playing as the Sun Jian's Forces side can you unlock Cao Pi.