General information:

BATTLETECH FAQ - Answers to some frequently asked questions plus some video links posted by emmasterakia
https://forum.paradoxplaza.com/forum/index.php?threads/battletech-faq.1088404/

Field Library of Helpful BattleTech Links posted by HBS_Dagger
https://forum.paradoxplaza.com/forum/index.php?threads/field-library-of-helpful-battletech-links.1071653/

Battletech Mech Tracker - google doc with stats for mechs, weapons, and more with thanks to CrimsonSDWS
https://docs.google.com/spreadsheets/d/1H3V0E8NEUExbA0qanThw2uCrEaoeN3siK6NSZpGkmPA/

One Chart To Rule Them All (Comparing Mechs, hardpoints, speed, etc.) with thanks to HonorKnight
https://forum.paradoxplaza.com/forum/index.php?threads/one-chart-to-rule-them-all-comparing-all-mechs-hardpoints-speed-usable-tonnage-melee-etc.1088884/

Battletech Lore Wiki
http://www.sarna.net/wiki/Main_Page

Gameplay Guides:

Cyttorak's Illustrated Tutorial
https://forum.paradoxplaza.com/forum/index.php?threads/cyttoraks-illustrated-tutorial.1090127/

Eck's Battletech Tactical Combat Guide
https://forum.paradoxplaza.com/forum/index.php?threads/ecks-battletech-tactical-combat-guide.1090224/

Guide: LRLOLRM's [Single Player] by Edmon
https://forum.paradoxplaza.com/forum/index.php?threads/guide-lrlolrms-single-player.1093362/

For Technical Issues:
This Is Not a Tech Support Thread - Use The Links or Start Your Own Thread For Help

BATTLETECH Bug Reports - Submit your bug reports here
https://forum.paradoxplaza.com/forum/index.php?forums/battletech-bug-reports.998/

Paradox Helpdesk - When you need more direct support
https://support.paradoxplaza.com/hc/en-us

GOG Support - For GOG related issues such as purchases and downloads
https://support.gog.com/hc/en-us

BATTLETECH SUPPORT FAQ posted by emmasterakia
https://forum.paradoxplaza.com/forum/index.php?threads/battletech-support-faq.1091228/

This post deserves more love!

Thanks for that ressources =)

BATTLETECH Wiki - all the informations about the game you will need (mechs, weapons etc.):
[url=]https://battletech.gamepedia.com/Battletech_Wiki[/url]

Nice info there.

Somebody should probably STICKY this thread...

Right after the logo screen, the game goes to black screen. Anyone else having similar problems again? Prior to the most current update I was having fun playing the game. Every driver is current on my computer too. So, what's going on here?

As the game card has no manual - here is the draft of the official one:
https://s3.amazonaws.com/www.harebrained-schemes.com/backer-beta/manual.pdf

Especially the "gold brackets" around the enemies I did not know. Oh, and if you rebind the key "TOGGLE FIRING ARCS" to something other than Ctrl, it actually works! Just hold down this while in move mode and moving mouse around to hex fields.