I'm attempting this same thing and have managed to scrape up 13, but for the life of me can't get them consistently. I've heard going to campaign "The Three Towers" has 2 AI Titans that are free crits but its still taking way longer than it needs to, the hitboxes for those crits are just so dang weird.
I did it in about 4 hours playing Pilot Hunter. Lot's of players put their Titan on auto in this mode. Get to the high ground. Use amped Charged Rifle burn cards when you get them. Shoot at the red spots. Nothing more to it. --- YOLO... It's like Carpe Diem for idiots. http://i.imgur.com/vrhzkRB.jpg
Are critical hits purely putting the titan into a doomed state or not? I did it last gen but still not sure. --- The only time MacMillan was wrong was when he thought he had made a mistake. - ( ') ARTE ET LABORE
Are critical hits purely putting the titan into a doomed state or not? I did it last gen but still not sure.
As a titan gets more damaged you should see spots start to glow red. You need to hit those with the charge rifle to count as a critical hit (it also does way more damage). --- "History Is Much Like An Endless Waltz. The Three Beats Of War, Peace And Revolution Continue On Forever." - Gundam Wing: Endless Waltz
You'll see the hit marker turn orange instead of the normal white. That lets you know it was a critical hit. --- If you think the cost of training is expensive, imagine the cost of ignorance! GamerTag:ONTHEFLY350YARD