Teaser details. Weapons! You like weapons, right?
Note: I haven't locked down exact costs for things yet.
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Weaponry
Bare Hands.
Damage: 1.
Effective Range: up to 1 tile.
Critical: x4 damage.
Standard Sidearm (Handgun)
Damage: 1d4
Clip Size: 12.
Effective range: Up to 6 tiles.
Critical:

damage.
Automatic Assault Rifle
Damage: 1d6
Clip Size: 24
Effective Range: Up to 10 tiles.
Critical:

damage.
Single-Shot rifle
Damage: 1d8
Clip Size: 8
Effective range: between 6 and 24 tiles away.
Critical:

damage.
Heavy Auto-gun (545-HA model.)
Damage: 1d12
Clip Size: 24
Effective range: 6-16 tiles.
Critical:
Rocket Launcher
Damage: 2d20
Clip Size: 1
Effective range 5-20 tiles.
4 tile blast radius.
Frag Grenade
Damage: 4d4 within one tile of grenade. 2d4 to next tile outwards.
Clip Size: 1
Effective range: Up to 10 tiles.
Smoke grenade
Damage: 0
Clip Size: 1
Effective range: Up to 10 tiles.
Does not deal damage. Instead deploys temporary partial cover in a 4 tile radius.
Comparatively, you have the crazy-expensive or hard-to-get hardware, like:
Beam Pistol (Works off of energy-rich rare byproducts of nuclear reactions. Don't fiddle with the charge-clip too much.)
Damage: 4d4
Clip Size: 100
Effective range: Up to 12 tiles.
Critical: x2
Alien Goo-tech Pistol
Damage: 8d4
Clip Size: 40
Effective range: Up to 10 tiles.