Im sure some people are struggling to use the Tortoise even more so in stock. Its has good Frontal protection however I feel like that in 6.7 is no longer in a suitable BR as it has more than 2 weak spots alone in the front and any shell with more than 200 plus pen at 500m is capable one shot the whole tank.
The Jumbo Pershing is even able to penetrate the small hull MG, if shot correctly. It could be drop 6.0 or 6.3 with the FV4005. And maybe increase the AP spalling of it and the turret MG could move a bit fast when dealing with CAS and maybe boost its travers speed. Tortoise in comparison with say the JadgTiger, Ferdinand, Obj. 268, T28 and T95 are much better in the Br that they at. However unlike their bunker busting Tank Destroyers it has lost its touch.
Sure some people will claim that its a Hard tank to kill but most can still kill it with the 2 known weak spots and with the new tanks near 6.7 from other nations being added its time to give Britain more balance 6.0 line up