I'm going to be working on these 6 warriors today. Red chests are next after the rust stage. I'm only painting the chests red on these. My immortals had red thigh and shoulder armour too. If I paint praetorians and lych guard then I'll increase the amount of red armour even further to include forearm armour. It'll show the increase in armour save and rank. I'll use less rust on the higher ranking models too.