confused about ability achievement.

[Flarus Dragon]

ok i havnt attempted it yet due to not completing the game but im real confused on how it works. Ive looked at the achiev guide and was like ?????? SO i get play the missions to get more but the ones im confused about are things like masta asia's training (i think it was) the ones that are specific to each person, how do you get these on one character, do you have to swap mobile suit or can u just use the same one

[ezekiel 08]

The Character Unique abilities don't count towards the achievements. I just used my 1st character over and over and I got all the abilities for his and I got the achievement when I saved.

[KILLSHOT666]

I just leveled up to 30 with Haman, then after every mission i completed with a friend or solo i got an ability until i got the achievement

[Jamie Solo]

I just played the Mausoleum level with Heero... a LOT... I never wanna play that level again now.

[DreadfulCorpse]

how many abilities must there be?