An additional cost of 1 point per hit point of infantry squads seems very light to me. Only 20% of base cost for a regular infantry squad to go from 5HP to 8HP. If choosing freely and competitively I think I would go for veteran all the time. Not sure if it is a straight linear progression as getting to 7Hp when most weapons do 3 damage unadjusted is a big bonus. Maybe not so much if using die roll damage. I would have thought 2 points per hit point, maybe even 3 from inexperienced to dependable.