Fire Emblem Heroes: Squad Assault 5 Guide

Free-to-play tacticians, here's how I passed Squad Assault 5 to acquire the Squad Ace E 1 Seal. This one is notably easier than the ones before it, so you could probably improvise and still pass it.

You'll probably want to equip all the required Skills and Seals before you begin. Remember to write down which units you are going to use, along with any special requirements for each one.
  

*** Obligatory Possible Spoiler Warning ***

Chapter 1-1: Willful Warrior
  

Team:
1 - Zephiel 4*: Red Sword Tank
2 - Arvis 4*: Ranged Damage
3 - Clarine 4*: Healer (Wrys)
4 - Sully 4*: Blue Lance

Essential:
1 - Red Tank
3 - Healer for Tank

Chapter 1-2: Lovely Bloom
  

Team:
1 - Selena *4: Red Sword
2 - Felicia *4: Magic Tank
3 - PA! Olivia *5: Dancer
4 - Cecilia *4: Green Mage

Essential:
2 - Magic Staff Tank

Chapter 1-3: Two Noblewomen
  

Team:
1 - Raigh *4: Rauorwolf Mage (Anti-Cavalry)
2 - Narcian *4: Green Axe Tank (Arthur)
3 - Robin F *4: Gronnwolf Mage (Anti-Cavalry)
4 - Palla *4: Red Sword

Essential:
Anything capable of killing four Cavalry Units.

Chapter 1-4: Blade and Dancer
  

Team:
1 - Lilina *4: Red Mage (Sophia)
2 - Clive *5: Blue Lance Tank (Subaki)
3 - Olivia *4: Dancer
4 - Corrin F *4: Blue Mage Tank

Essential:
2 - Blue Tank

Chapter 1-5: Captive Princess
  

Team:
1 - Black Knight *5: Distant Counter Tank [Seal - Distant Def 1]
2 - Clarisse *4: Archer
3 - Ursula *4: Blue Mage
4 - Lissa *4: Healer [Seal - Spur Def 1]

Essential:
1 - Distant Counter Tank
4 - Healer for Tank

*If you're having trouble, watch Baka Jam's strategy from YouTube