Yes, that's exactly the kind of approach the Russians will use. No high-tech stuff - just apply elementary principles. Such as, for example, digging up lots of dirt with a shovel, and piling it up on one side of the concrete sliding lid of the silo tube. This will jam up the sliding lid, and stop it opening properly. Thereby preventing a missile launch.Personally I would just put a large net attached to the ground with bungee cords over the top of each of the silos. Then when the missiles tried to come out the bungee cords would bounce them back in again where they would blow up. That's probably a lot more practical than trying to stand outside the silo with an SMG and shoot through the flames and smoke at a missile.