I don't know what you actually mean when you say 'true view', so I don't know how I can help you
A screenshot? (pb or better tzac)
Watching a demo from another player point of view? (wolfcam, but it works only for etpro and partially some other mods)
Delag a demo to see real aim instead of having it lagging behind with high pings? (image_et)
External camera / 3rd person? (etpro, maybe other mods for free view, 3rd person is cg_thirdperson)

Since you mention pb, then maybe you mean screenshot? Having an etpro server with tzac would be the best option there.

seismovision won't help you for any of these things, I think