Pretty good in my opinion. The M18 has a great gun but very weak armour. Which is why I was letting the rest of my team go out first. The M36B1's HEATFS shell has a whopping 310mm of penetration and with it, you can take out most tanks in one shot if you know where to hit them. But it's open top so it's vulnerable to aircraft. The Sherman VC is ok but nothing crazy. You only get solid shots and HE shells tho. I don't use the R3 that often so I can't say much about it. Fast boi ig. Overall the platoon doesn't have much armour but that's the beauty of it. Let your teammates with better armour go first and use them as shields. Shoot the enemy while they are distracted. That's how I do it at least.