Slaves to darkness - Ravagers and Path to Glory question

[Arl Aedis]

I've been looking to start a path to glory campaign with my buddy and was thinking of taking my ravagers through it. 
 

My understanding of the rules is as follows:

• The Glory for the Taking battle trait from the Ravagers says I can give up to 5 heroes command traits from the Ravagers list.
• Step 4 of the path to glory rules states that since this comes from my subfaction they are treated as core enhancements.
• The Tiers of Battle section states that the limits are for bonus enhancements.
• However, the subsection Command Traits specifies that the number of traits you may take are limited by the tier of battle.

Since we are just starting the campaign we start with a regular stronghold landing us in the Lower tier of battle, in turn giving us 2 command traits.

I assume this means I can only have 2 command traits to start with, even though I could have more heroes. That's a bit of a bummer.

My question is:  Once I can add more heroes to my army can I automatically give them their core enhancements command traits from the Glory for the Taking trait or will I have to get them to 15 renown so they may choose it?

Edited March 6, 2022 by Arl Aedis