This is a silly argument that ignores the huge differences between the lock on options on the titan and the smart pistol. The fact that the lock on options can be dodged and is limited in availability is just one reason.
I don't think your argument is a genuine argument because it ignores basic principles of FPS. Just having a first person view and a gun doesn't make something a fps. That is like arguing SWTOR is a third person shooter because you're in third person and shooting a gun. Please don't ignore fundamentals of a genre when you're making an argument about what does and doesn't fall within the genre.
By your definition, this guy is playing a third person shooter. He has a gun, it is in third person view, and he is shooting things.
https://www.youtube.com/watch?v=la_q8aE4H7Q#t=710
This is not what I am arguing.
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I don't see how anyone can be okay with this weapon being in the game. It is a weapon that literally does all of the work for you outside of you generally looking in their direction. It is far from the titan lock on options which are situational cooldown attacks, which are 100% fine due to their limited usage and specialized nature of needing a titan to use in the first place. The slaved warheads only target other titans and do not have the capacity to 1hk a titan (will kill pilots if they happen to get in the way). And the multi-target rockets are also fairly limited in usage. Both can be dodged since they are not hitscan (not sure how easy the multi-missile attack can be dodged) or blocked with vortex.
The only reason I can see someone being okay with it is because it can be out skilled (by being okay, I mean just accepting it is there and not actually wanting it to be there). Even when you're killed with it in the back, where other weapons would kill you just as easily, the weapon is still removing instances where you would miss just based on spread % chance alone. And your % hit chance is not affected by jumping or wall running.
When you remove the skill portion from the game in such a big way by having a primary weapon that performs consistently well, you remove a HUGE aspect of mastering a fps. Because consistency is that big a deal in mastering a fps.
All good games are easy to learn and hard to master. Right now, the smart pistol makes it easy to master a weapon.