A number of feats were added in the latest hak update, notably a number for Fighters on a charisma track. All of these look decent, though I am wondering if there was, perhaps, some oversights regarding them? The main issues I have with them are the high costs of entry, though there are other issues as well, which I will go over.
The first part is the level requirement, starting at level 10 and going as high as level 16. This is fairly high compared to the benefits of the abilities, especially as compared to abilities of other classes or spells, even low level ones which I'll highlight further down. I'd recommend that the level requirements be halved for each, though that leads to the next issue.
That issue is the skill point cost. As it stands Influence is not a class skill for fighters, so in order to take these feats you have to spend 2 skill points for every rank, making the feats cost 8, 12, and 16 skill points, respectively. This is a fairly massive cost for a class that only gets 2 skill points per level base, 5 points per level if they are a Human with 14 Int. No other class in PotM, to my knowledge, has a skill requirement for a feat that is not on their class skill list. The only thing that comes close, I believe, is the Blackguard requirement of 5 ranks in hide, though that is a prestige class. Unless influence becomes a class skill for fighters, which would be my recommendation, along with any class getting it as a class skill, then the required ranks need to be lowered.
Next up is the power of the feats, such as uses per day, benefit, a lack of scaling, and comparisons to other classes.
Rallying Cry is +1 attack and 20% speed for 1 turn+1 round per 2 character levels+1 round per Cha modifier, 3 times per day.
Inspire Competence is +1 attack and damage and +2 saves versus mind-affecting, one time per day, for 1 turn+1 turn per 2 character levels+1 per cha modifier.
Final Stand is 2d10 temporary HP to all allies for the same duration as Inspire.
In a vaccuum those might seem okay if they had nothing to be compared to, but we don't play in a vaccuum.
Clerics and Paladins get Bless at levels 1/6, Prayer at 5/12, and Clerics get Mass Aid at 5. All of these effects stack, have comparable durations, similar or greater power, and lower costs of entry. For a feat comparison and not a spell comparison Clerics and Paladins can grant 3 points of regen per round, group healing, a group speed buff, and more for no skill cost 3 times per day plus Cha modifier, not counting other feats that give more turn undead uses. Bards can give +1 attack/damage/AC/skills and +1d8 temporary HP at level 6, six times per day for 1 minute each use. At level 10, the earliest you can select the fighter Cha feat track bards get an additional +1 attack/damage, +2 skills, +1 saves, and another d8 of temp HP. And finally at level a minimum level of 3 bards can select a feat that gives an additional +1 to all bard song numerical values.
A final upgrade I'd suggest for the feats is to add some sort of scaling for the actual buffs, in addition to the durations. What form that scaling would take, I'm not certain.
That is a lot of numbers up there, and comparisons. I'm not trying to say that fighters should be able to do all the things that clerics, paladins, or bards can do, just that there needs to be some parity in usefulness of things. If there is not then it that feat track just looks like a boon for a paladin that falls and becomes a fighter.