Just cheat like a lot of other people.
You can change your textures so that any weapon or projectile is a brightly colored neon color (I've heard of other people who change the texture to something larger so it's easier to see, wouldn't doubt if Flying Dildo's actually sees dildos when he shoots). I would probably do that if I was an archer, I've threatened to do that as a cavalry lancer (make any pokey weapon over 140 length bright pink), but I'm not gamey enough to do so.
There's other "cheats" that people do as well, such as changing bushes and hay stacks into flat textures, so when someone thinks they're hiding behind a bush, you can still see them.
There's threads on the c-rpg forums on how to do both, but I can't be arsed to find them. You can also probably find the same information on the taleworlds forums.