MODDING WITH FREQUENCY

Select Frequency in the launcher when modding, and you can use its assets. Then when making laser rifles for example, instead of using "AmmoListMicrofusionCell" just specify the Frequency list "zzzAmmoListMFCLaser". There's a list for almost every combination of projectile type and energy cell, found at the end of the ammo lists, beginning with "zzz". Advanced scripters needing to know what the 'base type' of ammo a weapon uses can check the zzzAmmoCategory lists (like zzzAmmoCategoryMFC).
When adding new ammo, make sure you add it to the ammo lists manually, and move the 'standard' ammo (e.g. MicroFusionCell) back up to the top of the list, at position 0. Why? The ammo at position 0 is the 'default' ammo- NPCs with weapons using that ammo list often spawn with some.
In addition, there's the zzzWeaponType lists- these are intended to allow you to figure out if a given weapon's laser, plasma or whatever, for the purposes of scripts. You can use IsWeaponInList to determine which type a weapon is- if it's in the zzzWeaponTypePlasma list, then you can use shiny plasma FX. If you're adding a new weapon, please add it to the appropriate list too, so other mods can tell what it is. This can be done by script, so no worries.
Modding Hint: When using alternate projectiles, the impact data won't change- if you make a laser capable of firing plasma beams, it will still use the laser impact data. This can be overridden by putting an explosion on the projectile in question that deals no damage but uses the plasma impact data (and a selection of these 'cosmetic explosions' are included in Frequency). However, for 'Beam' projectiles the explosion/impact data may appear slightly inside of walls. For 'Missile' projectiles without Hitscan checked (i.e. non-Gauss Rifle projectiles) when fired out of VATS the weapon loses its base damage and can only deal damage through the explosion, making this method only effective for use on Gauss weapons. Sucks, but that's life- hopefully it'll get fixed sometime.