The powerful Parallax VX3 sniper rifle's heavy-hitting, high velocity plasma projectiles allow for easy long distance shots.
The Parallax is arguably the most powerful VS long range sniper rifle, comparable to the V10 and the XM98. The Parallax has a faster velocity and does more damage than both of these rifles, while the V10 has a faster reload speed and is more accurate.
When it comes down to it, the Parallax is better than the V10, but because of the larger price gap, the XM98 is preferred for beginners.
It is possible to get both Ribbons and Medals for using the Parallax VX3. Each Ribbon is a standard reward for achieving a set amount of kills with the Parallax. Medals relate to how many overall kills you have with the Parallax.