First Person Shooter for Tech 290/225

Game Title: Moyai
Game Overview
Game Type: First Person Shooter
Backstory and Plot:
Unimportant since it's basically a tech demo.
A nobody shooting up stuff for the sake of shooting up stuff in an unspecified enclosed space.
Characters:
You: play as Nobody, literally nobody (whatever cool thing I can find on the asset store for a player)
Enemies: again, whatever I can find that interesting enough for an enemy
NPCs: There are none
Level:
A single level set in various rooms to navigate through.
Enclosed space, possibly stone architecture. Like a catacomb, or tower or castle or something of the sort.
Visual Style:
Natural visuals.
Audio Style:
Music that's calm to keep the player focused

Level Overview
About:
Unimportant since it's basically a tech demo.
A nobody shooting up stuff for the sake of shooting up stuff in an unspecified enclosed space.
Characters:
Only notable character is the player character.
Location/setting,time period, mood, lighting, weather conditions:
The location is an enclosed indoor space.
Time of day: Noon or sunset (not really important unless there are windows)
Light mood.
Fairly bright lighting.
Clear weather and skies.
Structures, buildings, objects, and decoration
Small objects such as stones, bookshelves
Important places, events, encounters, hazards
Important place: Ending chamber room
Enemies will be scattered across the level
If I can get some kind of damaging trap working
Start and End:
The player starts in a room in the level. The player must progress through the level’s various rooms by clearing out enemies to unlock the next door. The level will end once the player reaches the last chamber of the level.
Scale:
Large enough for the player to encounter 7 or 8 rooms in the chamber
Length:
20-30 minutes.

Map Mockup (not final and likely will change):

Landscape Images:
https://www.istockphoto.com/photo/3d-illustration-medieval-bedroom-gm1224362317-359974377
https://www.bigstockphoto.com/image-67976560/stock-photo-underground-chamber-at-maasilinnus-castle
https://www.shutterstock.com/image-photo/castle-chamber-flooded-golden-sun-rays-1035983323

Assets:
https://assetstore.unity.com/packages/3d/characters/modular-first-person-controller-189884
https://assetstore.unity.com/packages/3d/characters/humanoids/fantasy/giant-monster-model-golem-278960
https://assetstore.unity.com/packages/templates/systems/low-poly-shooter-pack-free-sample-144839
https://assetstore.unity.com/packages/package/228680
https://assetstore.unity.com/packages/2d/textures-materials/floors/hand-painted-stone-texture-73949