Add more dakka (#307)

* Add more dakka

Some slight codebase changes to facilitate more robust behaviour.

* Update Content.Server/GameObjects/Components/Projectiles/ProjectileComponent.cs

Co-Authored-By: Pieter-Jan Briers <pieterjan.briers@gmail.com>

* Remix last stereo to mono

hpistol + ltrifle

Content.Shared/Utility/ContentHelpers.cs

@@ -47,7 +47,7 @@ namespace Content.Shared.Utility
             }
 
             var preround = toOne * (levels - 1);
-            if (toOne <= threshold)
+            if (toOne <= threshold || levels == 2)
             {
                 return (int)Math.Ceiling(preround);
             }