Select a model
Tap or click a model on either side of the terrain.
How can you practice Warhammer 40K line of sight?
Use the live 60 × 44 inch battlefield below to rehearse firing lanes before a game. Select a model, switch on line of sight in the toolbar, then drag the model around terrain. The board updates as you move, so you can compare clear angles, blocked targets, and safer positions without resetting a physical table.
Three quick reps
How do you find the firing lane?
Show sight lines
Use the line-of-sight control in the floating toolbar.
Move and compare
Drag the model around cover and watch which targets open up.
Lesson board · line of sight
Try both sides of the terrain. Reset restores the starting position.
What to look for
Why do angles win trades?
A useful firing lane is more than a straight path to one target. Check what the selected model can see now, where it would need to move, and what could see it back from the new position. Repeat the same move from the other side.
This lesson is a positioning exercise, not official rules text. Terrain and mission packs can change how a real table plays, so confirm the current rules with your opponent before the game.