Yep, clash of styles - classic and tactical. Nothing wrong with either but it really doesn't work to mix the two.

It easy to pick a modern tactical rifle by sight but I don't understand the meaning. To me the classic styles would present a realistic tactical arrangement. To me, tactical equates to practical and the modern tactical seems to mean something that can be modified easily without really being all that practical. Ease of modification is one thing, but I wouldn't think it's good tactics to do so. Probably over thinking it...