I'm pretty sure it's allowed just not preferred. I mean if we were to have a Demo I'd like him to be a Demoman rather than a Demoknight as it's more useful, especially in Highlander where there will probably be an increase in skilled players.
Yeah I would be mainly using the grenade launcher to toss grenades into them but the shield and sword are good for me to take out or keep up with classes retreating due to low hp so I can take them out
also idk why but I can't use both the stickybomb and Grenades at the same time effectively
it just kinda confuses me as to which to use really so I figure to use something that gives me passive buffs instead of a weapon I won't really use.
My Soldier I switch between. I like to use the Reserve Shooter but when I'm playing seriously I use my stock Shotgun, my melee is also determined by how serious I am, if I'm not serious I go Market Gardener, when I am serious I go stock for that too (Mainly because I dislike all of the other melees.)
TBH the best soldier Melee is the Disciplinary action just due to the speed boost and hidden 70% increased range