I'd agree the game modes are far and away the weakest part of the game. Blitz ball is sort of a mess imo, with a clean flag pull it's pretty much impossible to not score in pubs. Maybe more coordinated players would be able to defend but as it stands it is terrible in pubs. Overcharge is dumb because you can hold the ball for 90 percent of the game but if they hold it for the right ten percent they win. Zone control or whatever it's called is pretty good though, the different terrains of each capture point promote a varied team comp.
Long story short I've had a blast in both betas and am excited for the full release.