- Prevent the hacky player select See state from being used ingame.
- Increase armor bonus amount per pickup to 5, like in Doomreal.
- Add BasicArmor amount to HUD, for compatibility in case it's ever used.
- Replacements now respect IsFinal.
- Fix alignment of custom usable item icons in HUD.
- Revert to vanilla physics if player is frozen/totallyfrozen.
- Correct water level checks for swimming physics.
- Allow crouch-jumping and crouching while swimming. This goes against vanilla
behaviour but it would break a lot of maps otherwise.