Yes.
What we mean by indirect is essentially, when you go on a combat mission, you will need these things to go along with it. It's like a force package. Which one is the most lethal aspect? It's the one you would typically use for combat and for doing, for lack of a better word, the actual killing. Who is providing you the support?
Sometimes, we decide to include under the indirect not only the capability of combat engineering support but even reconnaissance. Even though some reconnaissance items might be employed for combat or killing, they are primarily used as a support unit that you send together.
Think of that as a force package—that indirect. It's not really an overhead when we are talking about indirect.