I believe it would be beneficial to move the hand mortar to T3 alongside the gatling gun, and the sniper to T2 alongside the SMG. A lot of players enjoy sniper rifles, and they can only get one at the end of the game, which means they don’t play with it a lot ; and the mortar is a very powerful weapon all throuhgout the game.
Pretty simple solution : Sniper becomes T2, mortar becomes T3. Makes the sniper available way more early in the game, and makes the mortar appear later, when it feels more needed.
Forgot to mention, but Gofastmike mentioned this idea in a conversation we had, and I thought it made a lot of sense.