c13

Another reason why I hate Windows 8. Same issue here, but besides frequency of crashes, removing mods won't help.

That's because the game doesn't naturally think of the ELS lights as lights, only extra parts. Doing what I said will work for all cars, and V7 most likely replaced the visualsettings file you had.

I would say 400, but it would be dependent on your own game. The default one, if you haven't messed with it, would be better for what you're trying to accomplish, but often times backup will disappear before utilized. I currently have the setting at 800, but I like simulating long responses to pursuits.

I used to have the same issue.
 
Inside ELS.ini, there is a setting called "Els_Range_Ai". This makes any ELS enabled vehicle be deleted after the distance set in meters. Raise it to a level your PC can support (mine is at 600) and you should no longer have issues with despawning backup

This one has a slide to side magnifer, flip ups and a flashlight:
http://www.gta4-mods.com/weapons/swat-issued-weapons-f15011
 
This one has 4 M4s, one that you're looking for, ACOG, Aimpoint and Magnifer:
http://www.gta4-mods.com/weapons/tactical-fbi-and-swat-gear-f15093

It uses the line "stockade", which is shared with nstockade and the standard stockade. To change this, edit the pstockade column titled Handling in the "vehicles.ide file" to "pstockade", then create a new line in the handling file titled "pstockade".

No one can without violating the rules, because providing links to R*'s original content is illegal and against the site's rules.