Obviously the weapon names are not final, instead focusing on being slightly descriptive.
The beam weapons are going be kinda zappy kinds of weapons (kinda odd for something described as a "slow beam" I know); the spread beam is a better small pd/anti-fighter option, the Sniper will have, predictably, high alpha and long range. Efficiency on these weapons will be somewhat to very poor, and excepting the Sniper cannon, range will be fairly short.
The Assault blaster will be a short ranged, flux inefficient weapon with good DPS; the EmP weapons will be modeled vaguely after the AM Blaster/Heavy Blaster, but with EMP instead--Slow fire rates, strong emp.
The odd weapons, the mine launchers and heavy PD/Airburst thing are going to be strange guns that fill niche purposes. The mine launchers are primarily for area denial
Spoiler
and launching barrages of Danmaku at hostile ships that stray too close
, while the WAPD/AF does what it says on the tin, firing big slow energy globs that explode in a sizeable AoE that wrecks fighters and missiles but it too unfocused to really hurt larger craft.