The crux of the issue is that it's a meh UU now. You don't have to escort it with spearmen now...ok...but do you escort your axemen now in an early rush situation?
I think the free cover issue is mixed, so I can understandably nix that idea.
I understand why they are not spearmen with a higher strength rating, based on historical reasons, concerning a vulnerability to flanking units.
So what do you do, given the above considerations other than increasing their
to 6? A free shock out of the box ? Giving them a
of 6 and keeping the current bonuses makes them stronger than Praetorians when facing melee units. It would give you 12 vs. 8 odds of defeating attacking chariots though. Keeping the
value at 5, but with a free shock promo makes them = 8.75 vs. 7.5 odds when facing axemen and 8.75 vs. 8 when facing Praetorians. It would also make them more useable under Pericles. It would still only give you 10 to 8 odds when facing attacking chariots...but that's allot better than 5 to 8 odds as a standard axeman.
In response to those that want a free healing promo. Think on this...with a free shock promo and under Alexander, the Phalanx would have CR 1, and Shock 1 out of the box. With a cheap barracs, you could easily put the Medic 1 promo on the unit yourself. Under Pericles, you couldn't do that though, but we're really more concerned with how Alexander might use the unit, right?
So...how do we mod the UU to start with the shock promo for free? For this mod, it would be nice to perhaps find a better graphic for the unit, no?
I'm at work, so I can't dig into the unit xml files atm.