What are you guys using to create maps? Thanks.
https://forum.vc-mp.org/?topic=1303.0
We use this ingame map editor scripts to add maps.
I'm using MEd (https://www.gtagarage.com/mods/show.php?id=1053) for big things, and Doom's Map Editor (https://forum.vc-mp.org/?topic=1303.0) for polishing
I like moomapper/kEd and Thijns IPL to XML tool, http://thijn.minelord.com/vcmp/iplConvert/
Am I right in saying, VCMP uses http://www.squirrel-lang.org/ as the scripting language?
Yes VCMP's official scripting language is Squirrel. You can use alternatives if you desire including C++, Java, Javascript, C# .Net, Python, Lua and perhaps more in the future. Check the plugins board if you are interested.
I use my own map editor. Here's a short clip of what it can do, though this is still very much WIP and there are some bugs :P
https://www.youtube.com/watch?v=T4wKSjDLvsE