Turf Takeovers
Out of all the modes available in PvZ: Garden Warfare 2, Turf Takeovers easily offer the most opportunities to earn glorious XP. The two modes are that fall under this umbrella are “Herbal Assault” and “Gardens and Graveyards.” One team is tasked with defending control points while the other is tasked with taking them over.
What makes these modes so perfect is that there are so many ways to level up, and you can vanquish enemies to your heart’s content since there is no score cap. As long as the session is running, you can keep eliminating opponents. Adding to their usefulness, the modes are perfect for grinding either online or offline (although, online will give a bit more). All opponents count as heroes in Turf Takeovers, so killing them offline with a 2X Multiplier is over 50 XP, while killing them online will net you a cool 200 XP. You’ll get XP for every second spent standing in the capture zone, for defending allies, for eliminating summoned plants and zombies, for healing, and for assisting in vanquishes (which you’ll get a ton of).
Turf Takeover is one grand XP fest, especially if you’re on the offensive and can win the whole session. That will give you just over 30 minutes of prime XP collection time.