Cavalry and chariots against infantry

[Macedon]

I haven't heard about the lance.

But I generally think archery, and missile weapons generally, were important. Zhmodikov makes a strong argument about thrown missile weapons in classical Roman warfare, and classical Roman infantry were usually better protected than most Old English infantry.

The sources mention that missiles thrown against horses scared them. I guess that this is not the case for firearms, since the bullet would not be visible (although I expect it to on average be more deadly).