yeah, I should take my tank, put the worst kind of turret for my tank type on(shield tank, blasters use WAY too much PG to fit a decent tank alongside the requisite coolants/damage mods), and charge the field so I get ripped in half in 12 seconds(skewing my numbers a bit high here). Or I use missiles, then I get ripped apart in 12 seconds, and laughed at.

or, I sit on a mountain, provide fire support where it is needed(like say onto that enemy tank, who, no matter what gun I'm using will outright murder me in every fight unless I get the drop on him, and he's a poorly fit, crappy driver, or I have significant range on my side) and have the height to revoke enemy air superiority.

Different tools for different uses. Shield tanks are very good for railgun usage as none of their tank mods are useful for a fight, and their lows can be left open via using the "efficient" models to stack mods for heavy burst damage over a decent period of time.

Railguns, thanks to their low track speed and massive range demand to be used from significant range and height as to ensure maximum battlefield control, anything less is pure folly.

so, we have a tank that is very poorly tanked, and hits like a truck. guess how you beat it? hit it once or twice(or use your own and hit him twice before he can even move and he's dead) so it has to hide to regen the 2/3 of it's shield you just took out for the next few minutes. when it comes out again, you hit it again. he'll move, then you take advantage of the time he's not shooting to push. or you keep hounding them until they recall or are killed.

Sorry that I'm not a battlefield derp who'll charge into suicide so you can have the free points you seem to want