Masochism and hardcore CRPG fans go hand in hand, and it surprises no one when first-time players jump into Baldur's Gate 3's Tactician Mode without a clue of what to do and how to do it. The developers promise these players that the game will chew them up and spit them back out if they go into Tactician without a decent knowledge of D&D systems.
Baldur's Gate 3: 15 Tips & Tricks For Tactician Mode
If you need help with Baldur's Gate 3's Tactician Mode, this list can lend a hand.