Originally Posted by John Rabbit
I like to see them add more customization to the classes. Like being able to spec a Wing Diver to have more energy reserves at the expense of health, or a Ranger being able to reload faster but smaller clip sizes. Small tweaks that allow for different play styles.
That wouldn't be unwelcome, but what the game really needs is a move towards some kind of on-the-battlefield 'customization', like basically every other shooter ever made. They probably don't want you to actually be able to pick up new weapons off the ground like Halo, I get that, but being given some minor control over the shape of the fight would be extremely welcome. Calling in weapon drops (Air Raiders already have a bit of the tactical thing I'm talking about here), temporary power weapons, even a Crysis-style fast weapon mod system could work. The older, simple, very-PS2 approach reached its apex in 4.1, it's time to give the core gameplay loop slightly more tactics.
This would also remove some of the existing trial-and-error structure of the game, which has gradually gotten better with each sequel but is still present. It's not fun to start a mission, get really into it, and then discover your weapons won't work so you need to back out and start again. At the same time you want to maintain some level of surprise so you can't just list enemy types for each mission. I'd be thrilled even with a simple weapon change station in various areas, you could even have it only offer various custom loadouts you've already configured.
Just to be clear I love the EDF series dearly. I'll buy it even if it is 4.1 with some new maps and enemies. But I really believe they could make the gameplay just slightly more complex without losing any of the existing spirit or pace. The basic mission flow hasn't changed since the original game, which didn't even offer right-analog stick aiming as the default control option! That's how 'not-shooter' the series started, and for a Japanese game in 2003 that was probably for the best. But Sandlot can probably safely move it in a slightly more complex direction by now.