The first node type is a basic action. We can create a wrapper function that will instantiate an action node and set the internal action accordingly. Actions are only designed to execute behaviors on an agent and shouldn't be assigned any children. They should be considered leaves in a behavior tree:

SoldierLogic.lua:

local function CreateAction(name, action)
    local node = BehaviorTreeNode.new(
        name, BehaviorTreeNode.Type.ACTION);
    node:SetAction(action);
    return node;
end