Buying SSD for Arma2 - No. But for operating system and its applications, yes it might even be worth of the money. You'll surely get nice speed boost on Windows and also some improvement in Arma2 loading times. I doubt it could affect games' FPS in any way, since not even the modern SATA2/3 HDDs aren't usually the ones that bottle-neck a system (unless your other components are uber-high-end).
When I bought a SSD for Arma2, I was hoping it would cure the infamous changing LODs (as some users reported), but did nothing for that. Only the said loading times were improved. But for OS - it's just awesomeness!
When I bought a SSD for Arma2, I was hoping it would cure the infamous changing LODs (as some users reported), but did nothing for that. Only the said loading times were improved. But for OS - it's just awesomeness!