Dnd first time dungeon master advice
Me and my friend group have decided to start a dnd campaign. None of us have played before and i am the Dungeon Master. I will lay out my session 1 plan and i would appreciate if you could give me your opinions and if i should make any changes.
The session begins in a tavern in a small town called Springwood. The party meets for the first time and presumably have a few drinks. They meet the first npc, Agatha (an old lady who owns and still works at the tavern.) She offers them rooms on the house and is generally just a sweet old lady. they hear rumors and talks about a recent orc problem in the area, how they have been raiding convoys and even villlages.
Eventually, another npc enters the tavern looking for people to join him to help clear out a nearby goblin outpost. Bron is a grizzled war veteran who has retired and serves as the head of the town's meager town guard. the party ventures to the goblin outpost and kills the majority of the goblins. One cowardly goblin named suk surrenders to the party and offers information in exchange for his life.
He tells the party of a powerful orc warboss who's power has recently been growing. He tells the party the location of the warboss' camp and tells them that there is lots of loot inside. Bron offers for the party to return to the tavern so he can pay them what they are owed for the quest
At this point the party has 2 options. They can either return to the town or go to the warboss' camp. If they choose to go to the warboss' camp bron will leave them, but when they arrive they find the place almost completely deserted. they can search through the camp and possibly find some gold, but not very much. As they return, they notice that the town is ablaze and that the orcs had come to the town and were raiding it.
If they chose to return to the town then they would have gone to the tavern immediately and after they were paid the town would have been attacked by the orcs.
The party has to face sporadic waves of orks while trying to save as many townsfolk as possible. After the party is worn down, the warboss apears. He taunts the players and laughs at how weak they are. He also ends up killing agatha (the old lady). Just as the party is about to die another orc runs up to the boss and tells him that the empire has arrived.
The party sees an army of hundreds of professional soldiers arrivng into town being led by a man on an imposing white horse with clearly very expensive equipment. The orcs retreat and the majority of them escape. the man takes off his helmet and introduces himself as Andreus Castus a knight of the empire (he is a very snooty character who clearly does not care and feels beneath his involvement ) he requests immediate provisions for his army for his departure to the capital not caring that the village was just ransacked and had lost almost everything. he will dismiss any of the parties attempts to get him to finish off the orcs saying things like "Unfortunate. But villages burn every day." he tells the party that the king is on his deathbed and he must travel to the capital to cement his position. He tells the party that they will have no help from him with the orc problem and that they should deal with it themselves.
the session ends with Andreus' departure from the still burning village
I put alot of time and effort into thinking of this idea and i would appreciate it if you could give me advice and tips for my campain. I was thinking of the warboss being their first bbeg who takes up possibly 3 -4 sessions and the empire and its state being the main focus. Thank you for reading this absolute essay.