The new map is really good for brush, maybe weaker in Tower Control than the other two modes but I'm not sure yet. (Maybe I just suck at it
)
As far as getting the hang of it, inking ground and laying beacons are priorities with Octobrush, since stealth/ambush is the most effective way to get kills. Once you lose map control, short range weapons become far less useful. Certain maps favor a base invading strategy (good for Octobrush) that makes it almost impossible for the enemy to make any inroads, because they are so focused on getting you out of their base.