Planetside 2 is sort of a MMO Tactical fps. Involves (or can involve if you find the right group) a decent amount of geographical planning with squads and platoons across each playable continent. Very large worlds. Armor vehicles and aircraft are available too to add a new layer of logistics.
However it's plagued with performance and bad UI issues due to the 14 year old Forgelight engine, and the dev team is pretty unorganized these days so the player experience is not terribly great, especially for someone starting out fresh on the game that doesn't understand its many, many quirks (and does not have the skill to go up against the 1000+ hour gaming chair sweats that almost exclusively populate the PS2 servers now). That doesn't mean it's not worth trying though- it's free to play, so give it a try, get into a platoon, and see how you like it.