Thinking about it, maybe the Russian OOB could do with some more engineering vehicles as opposed to mineclearing tanks. As far as I remember there was something indeed about engineering vehicles being the only ones able to clear dragon teeth, maybe that was in some recent upgrade?
As Marcello said, the DZM and probably the T-55-BTU could change class. Maybe the DZM (whatever that is, looks BMP-3-based from the lbm?) or IMR can also be completed by something more basic like the
BAT or BAT-M, modeled as a basic unarmored bulldozer.
I know the Russian OOB is overcrowded, but maybe one or two from the numerous recent mineclearing tanks could be spared? There are 16 class-36 units based on tanks with the KMT series devices, including 2*T-72B1, 2*T-72BM, 2xT-80BV, 2*T-80UM and 2*T-90. Also one T-62M with KMT-5 exists as both units #491 (71 to 90) and #626 (90 to 2010 (2010??)), the only difference being the main gun type.