>>23509302
Mechwarrior 5 has some story but you can basically ignore it and enjoy the sandbox. It's not that hard to get into and it's relatively enjoyable.
Online I have played the most, but it has a steeper learning curve. You really have to work at it a bit to get a good grasp of tweaking your mech loadouts and optimizing them, but also it is one of those games where teamplay and communication are critical, and going solo rambo mode will get you nuked really fast. When I picked it up myself I just got wasted by LRMs from across the map over and over 'cause I was retarded, but you really have to learn how to move around and behave to do well.
I honestly really enjoy it as a fun sort of tactical mecha game, but it takes time to learn your way around it, but very rewarding once you do, between the customization, the teamplay, and how fun it gets when everything syncs together.