It's all a bit of give and take and would be impossible to get a perfect film.
Old Films (good points) - Other countries shown, not just America. Full size mock up models, blown up. Some believable actors. More patriotic films as tributes.
Old Films (bad points) - Crispy clean clothes, spottlessly clean actors. Bullets that always richocet with the same noise. Never ending magazines and huge petrol fire explosions. Grenades that blow up everything. Facts changed for ease of making the film or ratings. Bouncing polystyrene (oops rocks or concrete), Characters always disobeying orders as they know better. Walking on patrol in a group all together in a bunch. Incorrect vehicle types, uniforms and facts.
New Films (good points) - Better special effects. Better sex scenes (or did I cover that in special effects :-D).
New Films (bad points) - Only America shown even if they didnt do it (U52) or didn't save the day Blackhawk Down (Malaysian armour was pivital at saving them). Never ending magazines and huge petrol fire explosions. Grenades that blow up everything. If a Hollywood film 99.9% of the time it ends with everyone hugging and saying yay (really annoying once that is pointed out, and it's not just war movies. Now I watch a movie to pass the time until it get's to the yay moment). Facts changed for political correctness. Unbelievable actors, long hair, ear rings. Characters always disobeying orders as they know better. Walking on patrol in a group all together in a bunch. Incorrect vehicle types, uniforms and facts. Films made completely with a political point to be made.