"nType" - shape type
"pszModelName" - Sprite Name
"pszHaloName" - 2nd Sprite Name
"m_flHaloScale" - Halo Sprite Size
"flLife" - Draw duration
"flWidth" - Start Width
"flEndWidth" - End Width
"flAmplitude" - Sprite Jitter
"flBrightness" - Alpha
"flSpeed" - Sprite Scroll Speed (for animated ones, eg physbeam)
"nStartFrame" - At what frame the beam should draw
"flFrameRate" - Beam Framerate (i guess)
"flRed, flGreen, flBlue" - Color"
"m_nSegments" - Determines how many segments the beam should have
"m_bRenderable" - Should render
"m_nFlags" - Beam Flags