Blip Questions (Directional Blips / Roadblock Blips)

[Dilapidated 26]

So we know how to assign specific blips and how change blip color but they're two aspects that I don't understand using C#.

 

1. Directional Blips. How can we make blips rotate so that they show the direction they are facing? I.E. If we assign BlipSprite.Jet to a lazer is there a way to force the blip to always show the direction the lazer is facing on the map?

 

2. Roadblock blips. So any vehicle that's set to be part of a roadblock in dispatch.meta ALWAYS appears on the map as a police blip. To be exact it shows as (BlipSprite)(-1): case BlipSprite.PoliceCar in our log. The standard way to script force these to appear as red blips appears to overridden by another file somewhere. Has anyone attempted to change an assigned roadblock in dispatch.meta to appear as a different blip color/sprite or is there another file somewhere controlling this/hardcoded?