[quote name='io']
So did I hose myself by playing the hybrid class (and getting SOME weapons and SOME biotic done)? Oh well - I may not go for every achievement anyway, I just want to maximize what I'd get on a second playthrough. So I may play again with the same char to get level 60 and the hard difficulty one (and 2 more allies) and perhaps a 3rd in a different style to pick up the Engineer ones. It's not too important to me to get 1000 if it is too time consuming and repetitive. I can always save another playthrough for a year or two from now as well so it is more fresh.
Lordwow - wait, do you mean you can equip the other weapons even if it says "untrained"? I never even tried but I'll try that in a minute. I'm bored with the shotgun and pistol now anyway and want to do something different.[/QUOTE]
Okay here is the thing...it's complicated but I'll try to explain it clearly, this will address lordwow's points as well.
It is POSSIBLE to get SOME of the random "use X 75 times" using hybrid classes like infiltrator or vanguard. But because there are so many unique abilitiles, (6 under biotic: warp, stasis, lift, throw, singularity, barrier) the ONLY way to be SURE to be able to get all of them is to plan 3 pure class (adept, engin., soldier), and if you're plannin on getting the ally achs, know you need 45 assingmens and 15 story missions (and will therefore get "completionist" ); also plan on who to use on each playthrough. Mine for example will look like:
First: Engineer, Normal difficulty, Asari and Soldier Ally achs, all tech achs, completionist, tactician, geth hunter, ...
Second: Biotic, Hardcore difficulty, Agent and Krogan Ally achs, all biotic achs, power gamer...
Third: Soldier, Insane difficulty, Tali and Kaiden Ally achs, all weapon achs (if this is even posible)
Im around level 40 on my second playthrough. Eventually, I will have to take one of those characters through almost an entire additional playthrough to level them up to 60. It really is too bad you can't use the same character and change their class for a playthrough (and perhaps just rearrange or re-allocate thier skill pts. )