FrogReaver
The most respectful and polite poster ever
As it is a martial class, I'd suggest something like a fighting style. It doesn't have to be the full list but something else that provides a benefit to the warlord themselves so that they aren't overly specialised would be good at 1st level.
Maybe. I guess here's the deal:
From level 1-3 we have at most maybe 6ish things that can be added in. 1-2 of those things must be subclass abilities. That doesn't leave a lot of design space for little things like fighting styles and such.
We already know healing or temp hp granting is a must have. We also know that attacking granting is something we want to give the Warlord here. Also buffing allies is also a big part of what he does. That should come here as well. That's already 3 things we are trying to give him in that level range, along with whatever subclass abilities he gets.
The issue with giving the warlord anything he doesn't absolutely need to fulfill his concept (especially in the early levels) is that there just isn't a lot of space left for things like fighting styles.
Maybe there is a design that works better, though [MENTION=6801209]mellored[/MENTION] will probably complain it's even more like spells.