I've recently picked up on MW2 again and am planning to go prestige soon-ish. I've stayed at lvl 70 to complete achievements like headshots etc (as I already had quiet some progress on them).
I know there are prestige specific titles, some are related to a specific prestige stage. My question now is: can I level to prestige 10, 70 and then start working on my achievements, collecting all titles?
I would expect getting achievements on a higher prestige would account for the achievement on a lower prestige? (like if you complete the single player campaign on veteran, you also get the achievement for completing the campaign on regular and hardened)
Many thanks in advance!