Beta 91
Summary of changes (For more details and notes, see the full changelog (TAT-v2.0-Beta-Changelog.txt) included in the release):

Tweaked Arm Guardian and Core Punisher models to help with shots hitting the ground in front of targets.

Added CTRL_W to the Arm Blade and Core Blackdawn and Krow.

Depth charge damage to Commanders reduced to non-amphibious unit levels.

Arm Dragonfly and Core Seahook cruise altitude reduced and Seahook model size increased.

Core Oppressor rocket flighttime increased slightly to fix them not being able to hit targets south of them.

Arm and Core strategic, tactical, and anti-nuke silos are now on the Gantry constuctor build menus (Thanks ChaoStorm).

Defenses that can close or go underground to armor up now all take 1/6 damage, instead of 1/4:
Arm Dragon's Claw
Core Dragon's Maw
Arm PACKO
Arm Pit Bull
Core Viper
Arm Thunderstorm
Arm Ambusher
Core Toaster
Arm Annihilator
Core Doomsday Machine

Arm Vanguard explosion sprite made smaller.

Arm and Core Metal Generators now take 1/4 damage when closed instead of 1/2.

Arm Avatar and Core Mauler weapon shaking reduced.

Line of sight support increased up to 3000 pixels.

Arm Sharpshooter weapon area of effect doubled.

Arm Jeffy and Core Weasel armor reduced and firepower increased.