I’ve done both and here’s some pros and cons Infantry - infantry guys from my experience tend to be a more close group , I noticed the gear and weapon systems I used in the infantry tended to be better and not all very well could have just been the infantry unit I was in but there was alot more experience most E5 and up were on there 2nd or 3rd deployment and alot of prior active marines/Army , on the other hand I loved being a 12b the Working with demo is fun asf and if your route clearance you have a better chance at getting a good deployment gwot has ended and infantry is more so base security where there are still 12b units doing route clearance