Glitches?

• You can apparently get Munio's gear early by defeating an enemy in a certain battle in Ononhaar and picking up the chest he drops. This takes a long time and a lot of luck to get the opportunity, so it might not be practical in a speedrun despite being very useful once acquired.
• I've heard that you can recruit temporary units permanently by hiring them when you don't have enough money. This could be used to acquire Dervishes, Amazons, and other units early in the game when they would normally only let you temporarily recruit them.
• Undead Legionnaires and Undead Summoners have the innate ability Fleshless Target, which greatly reduces damage caused by ranged attacks. Occasionally though, this doesn't work for whatever reason. This means Archers and Gungnirs/Peltasts can sometimes do heavy damage against them, making them not completely useless in battles against the undead.
• Not really a glitch, but a good exploit nonetheless if true. I've read that you can simply quit the battle after starting the Caltha Championship, and continue the game as if you had won. I need to check this to confirm.
• Story-essential heroes (Urlan, Ursula, Valens, and Eiji) can die in the final battles of the game after Caltha without any consequences beyond not being able to use them anymore for that battle. This is probably not true for gladiators you have recruited, but it still needs to be confirmed.