Yup. Plate carriers are good if you're going to be mostly stationary or in a vehicle, but if you're going to be moving on foot a lot, there are better options. I know everyone loves chest rigs, but those don't breathe very well and trap heat, which sucks in hot weather. I've become a fan of belt kit / webbing / PLCE / jungle kit / whatever people are calling it now. America moved away from this sort of thing during the GWOT, but the Brits and Aussies are still rocking it. I think the Russians are still using the SMERSH here and there? The only downside to belt kit is that you need to carefully choose a pack to pair with it, since you want a pack that will sit nicely on top of the rear pouches or butt pack.
You can still wear a plate carrier with belt kit too, as long as the belt harness you're using isn't overly padded. If you need to, you can keep a slick carrier in your pack, and take it out and put it on when you're expecting a fight. You do need to avoid thick shoulder pads on the carrier though, since you'll be 3 shoulder straps deep with the pack straps over carrier straps over harness straps.
Belt kit isn't for everyone though. Very V-shaped guys with slim waists might struggle with fitting everything they'd easily fit on a chest rig.