Installing third-party mods for PlanetSide 2 is a big no-no. Sony Online Entertainment has announced a strict policy against using mods for the latest free-to-play MMOFPS.
The firm cleared their stance on modding on their forums:
It is vital that you not run software which modifies the PS2 client in any way.
There are no exceptions to the mods in question. UI mods, data-mining apps, usage of any third-party software for that matter will result in a permanent ban for any PlanetSide 2 player.
We cannot make exceptions to this. We do understand there are relatively harmless apps that fall in this category, but if we allowed those they would simply be used as a shield excuse by players trying to cheat. This same rule applies to data that PlanetSide 2 uses for gameplay. Do not modify any of these files or attempt to modify them in memory.
There are some applications that modify the Windows or DirectX environment without changing the client. These may also result in suspensions unless we specifically exempt them and declare them OK to use.
The most simple guidance here is do not use third party programs which change the PlanetSide 2 gameplay in any way unless it has been specifically cleared by SOE.