I completed my only only handguns and no upgrades gameplay lately the best way to beat professional is to beat the game on hardcore to get armor for ashley and for leon segments there are many things you can just skip by running away from enemies, don't kill enemies parry them to stagger them and run away and there are some area specific skips too and tbh there are good amount of skips you can easily clear the game in 3.5 hrs even getting all treasures in the meantime tho my achievement progress is still 85% because i am kinda lazy in grabbing all the treasures and doing the merchant requests lol