Sima Yi

EX Weapon: Horsehair Whip
Weapon Name and Skills: Demon Beard - Slash: 10, Survival: 9, Spurt: 9, Fury, Awe: 8
Stage: Riot at Luoyang
Requirement: Initiate an advance with Xiahou Ba within 8 minutes of starting the battle.

Rather easy objective as you can get it during normal stage progression.

Sima Shi

EX Weapon: Lightning Sword
Weapon Name and Skills: Hail Slicer - Frost: 10, Rigidity, Enlightenment: 9, Flurry: 8, Induction: 8
Stage: Seek the Secret Ingredients
Requirement: Gather all the ingredients after defeating at least 10 other collectors.

Rather easy objective as you can get it during normal stage progression. Make sure to beat the secondary officer near the main officer who doesn't want to give the ingredients without a fight.

Sima Zhao

EX Weapon: Striking Sword
Weapon Name and Skills: Strike Sealing Sword - Venom: 10, Protection: 9, Barricade: 9, Uplift: 8, Spurt: 8
Stage: Battle of Shangyong
Requirement: Protect Shangyong Castle from the Fire Attack Unit, Rams & Siege Ramps.

Prioritize Siege Ramps > Rams > Fire Attack Unit your allies should be able to hold off Wu officers long enough for you to defeat the Ramps and Rams.

Deng Ai

EX Weapon: Lance
Weapon Name and Skills: Spiral Thunder Lance - Thunder: 10, Thorns: 9, Velocity: 9, Explosive: 8, Frenzy: 8
Stage: Escape from Chengdu
Requirement: Defeat all ambush soldiers within 10 minutes of starting the battle.

The Ambush is set after Zhong Jun & Tian Xu.

Wang Yuanji

EX Weapon: Throwing Knives
Weapon Name and Skills: Mercurial Rain - Thunder: 10, Recovery: 9, Chain: 9, Fear: 8, Swiftness
Stage: Zhuge Dan's Secret Plan
Requirement: Join Zhuge Dan at the Northeast Fort within 3 minutes after defeating Wen Yang.

Rather easy objective as you can get it during normal stage progression.

Zhong Hui

EX Weapon: Flying Swords
Weapon Name and Skills: Flying Light Swords - Inferno: 10, Morass: 9, Thorns: 9, Uplift: 8, Jubilation: 8
Stage: Defense of Shangyong
Requirement: Rescue all allied officers inside Shangyong Castle within 5 minutes of starting the battle.

There are various paths you can take that lead to Shangyong Castle, experiment to find which route you find faster and save Wen Hu, Deng Zhong, Wen Yang & Shen Dan. Do not kill officers along the way to Shangyong Castle as someone is likely to die before you get in.

Zhuge Dan

EX Weapon: Short Rods
Weapon Name and Skills: Piercing Beams - Flash: 10, Frenzy: 9, Vigor: 9, Jolt: 8, Spurt: 8
Stage: Defense of New Hefei Castle
Requirement: Defeat Lu Meng & Lu Xun within 7 minutes of starting the battle.

Lu Meng is in the way of you getting reinforcements from the West while Lu Xun is near the enemy main camp. You'll have to go to Lu Xun after rescuing Man Chong and defeating Lu Meng, but don't go too close to Sun Quan.

Xiahou Ba

EX Weapon: Seige Spear
Weapon Name and Skills: Frost Breaker - Frost: 10, Explosive: 9, Chain: 9, Thorns: 8, Morass: 8
Stage: Defense of Shangyong
Requirement: Rescue all allied officers inside Shangyong Castle within 6 minutes of starting the battle.

There are various paths you can take that lead to Shangyong Castle, experiment to find which route you find faster and save Wen Hu, Deng Zhong, Wen Yang & Shen Dan. Do not kill officers along the way to Shangyong Castle as someone is likely to die before you get in.

Guo Huai

EX Weapon: Arm Cannon
Weapon Name and Skills: Spark Cannon - Thunder: 10, Greed, Thorns: 9, Enlightenment: 8, Awareness
Stage: Defense of New Hefei Castle
Requirement: Defeat Ding Feng & Zhu Ran within 7 minutes of starting the battle.

Ding Feng is in the way of you getting reinforcements from the West while Zhu Ran is near the enemy main camp. You'll have to go to Zhu Ran after rescuing Man Chong and defeating Ding Feng, but don't go too close to Sun Quan.

Jia Chong

EX Weapon: Throwing Axes
Weapon Name and Skills: Minefield Blades - Thunder: 10, Fear: 9, Chain: 9, Resolve, Roar: 8
Stage: Pacification of Bashu
Requirement: Get all three of Zhong Hui's officers to return within 15 minutes of starting the battle.

Rather easy objective as you can get it during normal stage progression. You will want to be wary of the Messenger(Assassin) heading for Ju An through the bottom route.

Wen Yang

EX Weapon: Javelin
Weapon Name and Skills: Funeral Bringer - Slash: 10, Vigor: 9, Triumph: 9, Fear: 8, Protection: 8
Stage: Escape from Chengdu
Requirement: Escape from Chengdu Castle after all Arbalests have been destroyed.

There are 5 Arbalests in total all in Zhong Juns area.

Zhang Chunhua

EX Weapon: Wired Gloves
Weapon Name and Skills: Death Shroud Claws - Venom: 10, Recovery: 9, Explosive: 9, Fury, Whirlwind: 8
Stage: Riot at Luoyang
Requirement: Advance to the Throne Room within 10 minutes of starting the battle.

Rather easy objective as you can get it during normal stage progression.