Climbing in this game is impossible

I always have objectives on top of buildings that i can not reach. I spend about 20 minutes just trying to figure out a way up. You can't grapple onto most things like windows or even some ledges so WHY even have objectives up there. It is not fun!!! There are no fast travel checkpoints up there and if there is, it is most likely locked. I still can not understand why there is not an easy way up to these things. Back in beta the only way i could get on top of them is by doing the glitch that would send you flying in the air and i would land where i needed to be. I'm just here to share my frustrations, I highly doubt they will even read this or even care to improve it in the near future. Oh and the menus keep glitching out. They overlap on other screens like your map or when you're changing outfits. That is something simple that should be fixed ASAP (since early access launched btw).