They have a grey lizard (commonly called Cuban grey lizard) dating back from the days of international interventions. They have some other patterns as well, including a briefly seen and limitedly issued greenish lizard, but it wasn't like the one in the picture and it was never used by Tropas Especiales.
The point in my opinion is not so much the healthiness or lack thereof of mud but that one basic concept in camo is to disrupt the human figure. How, one wonders, can you do that when you are shirtless and showing the human body in all its splendor, is beyond me.
Other than that, Tropas Especiales do have a very effective camo pattern, perfectly adapted to Cuban vegetation.
And this is the on the Factories on UIM (union de industrias militares) which is located in Holguin. You can notice they mounted a modified turret with a 100mm T-12 and another version with a turret and e 122mm D-30.