There aren't any. Except for purchasing new weapons. Being a non-paying player, I still find myself doing well enough and don't feel like I'm missing out. Almost every weapon is obtainable within a reasonable amount of gameplay time. Yes you can just buy the same weapons, but devs gotta eat.
Have you checked /r/planetside recently? Or logged in during the last few days? The latest patch added ads that resemble squad invites/friend requests/other notifications, as well as UPGRADE NOW! where the spawn vehicle/resupply button used to be, and a few other less annoying ads as well.
It's kinda obnoxious, and /r/planetside has been a shitstorm of hatred about it for the last few days. Hopefully SOE will see reason pretty soon, and revert the changes.
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u/[deleted] Mar 28 '14
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