I’m sure many of you have seen that you can renove the bayonets from most weapons. If you do this, you should be able to put them in your soldier’s knife slot and use them as a standalone weapon. They would be functionally the same as knives, just allows for variety. However, spike bayonets the the Lee’s or the Mosin’s bayonets would not have this.
Anyone should be able to re-enter an APC after they have dismounted (only the owning squad can drive it tho). This would allow you to drive players and their squads around the map. To prevent griefing, if the APC is full, you would just spawn on top of/next to it. This would also be good for modders who like to make large-scale maps.
Small edit: when the apc is full it would tell you that you would not be spawning inside the APC. This could let people know that they might not be fully protected, or that they might take damage if the apc is moving.