Hey guys, recently I've been running 2 initial specialist perk instead of the 3 before the bonus. I have found if you have hardline on initially you get your two perks then full specialist bonus at 7-8 kills. Which means you get your specialist bonus perks much faster than if you added a 3rd perk to obtain before the bonus. So at the cost of one perk you get 3-5 perks the same time and faster. I don't know if this is a tip lol but I've found it to be quite useful in game thus far.
That's awesome! Especially for those of us trying to obtain the Uniform. Beside that however, I've enjoyed the Specialist since MW3, and can't wait to utilize it more in this title.
The best way that I have found is to use hardline as a standard like you said but use perks with a value 1 for the 3 perks you earn before the specialist bonus. If done this way you still get your bonus at 7 or 8. Don't use the good perks with higher values on your way to bonus because it can take as much as 12-13 before you reach bonus. Save the higher valued perks for your bonus perks.