T23 AT

In Early 1943, a design study called for mounting the 90 mm M1  antiaircraft gun onto the chassis of the T23 medium tank. In March, such an installation was presented to Generals Barr and Devers. While nothing came out of this particular project, the tests proved useful in the design of the T25 and T26 tanks later that year.

Wooden mockup of the above drawing. Notice the installed gun shield previously absent.

The above image served as the inspiration for Wargaming's T25 AT, which uses the chassis of the T25 medium tank. This tank, as modeled, is pretty inaccurate beyond just the name. As you can see in the wooden model, the tank doesn't actually have a full armored casemate. Rather it's a gun shield designed to protect the crew from small arms fire with limited traverse, more similar to a German Nashorn rather than a Soviet SU-100.

I think in order to make the vehicle more authentic, we need to use the T23 chassis. With this comes the use of weaker engines and worse armor, and as such, the vehicle should be dropped a tier. We can give it the 90 mm M1 as a stock option and remove its 105 mm top gun to better balance it here. And of course, the T25 AT should be renamed to the T23 AT.

At Tier VI, the tank makes for a decent transition from its parents into the slow, well armored vehicles found in the rest of this branch. It's rather sluggish itself and somewhat unarmored, but it carries an incredibly powerful gun for its tier. This tank should be dedicated to a support role like its predecessors, but gradually lean into the front line playstyle of the rest of its branch. As with the T53 GMC, the stock hull option for this tank doesn't have the gun shield, but the alternate hull does.

Guns: 90 mm Gun M1; 90 mm Gun M3; 90 mm Gun T15E2

Engines: Ford GAF (500 hp); Ford GAN (525 hp)

Suspensions/Alternate Hulls, Total Weight (metric tons): T23 AT (??); T23 AT Shielded (??)

Hull Armor (mm): 76/50/38

Top Speed: 56 km/h

Crew: 4 (Driver; Gunner; Loader; Commander/Radio)

Parent: T53 GMC
Children: AT Project
See Also: T23

Sources:

Hunnicutt, R. P. Pershing, 2015