Kanal is held against the bridges and stairs that feed each site, with rotations placed where those approaches can't see them.

Bombsites

2F Server Room, 2F Radar Room

Two walls are reinforced, and a third is reinforced with footholes so a defender can hold the Red stairs, the jump in and the push from the bridge. The rotation goes on the right, where the bridge can't see it. Another wall is reinforced against wallbangs from the Sky bridge, with footholes that hold pushes from the far side and deny a plant. The Green and Red walls are all reinforced, and holes onto the bridge add pressure and let defenders surprise attackers crossing it.

B Kayaks, B Supply Room

Two walls are reinforced. One already has holes onto the Main stairs, so more holes elsewhere are unnecessary. The rotation goes on the left, with a reinforcement beside it for cover. Of the two walls leading into Scuba, the left is reinforced and the right has headholes, which hold the staircase and the push and also cover the closet and the hatch drop from the other side. Both hatches are reinforced.

1F Security Room, 1F Map Room

The walls on the top floor above the site are reinforced. One hatch is reinforced and the other can stay soft, so defenders can drop through it and hold from below. In site, three walls are reinforced with a rotation. One more wall stays shut, because opening it would expose defenders to the hallway. Two further walls are reinforced with a second rotation, and footholes watch the Green stairs.