Here's some basics, to get you started.
Utility Toggle-Burst-Fire-Mode - Set this if you frequently switch to Burst Fire mode. Would recommend binding to the C key.
Activate-Held-Object - Does what it says on the tin. In other words, this will most likely be your "Deploy Table" and "Wield Two-Handed Weapon" macro. Would recommend binding it to the space bar.
field-strip-weapon - Does what it says on the tin. This one is very situational, but useful nonetheless. Would recommend binding it as Alt+F.
Unique-Action - Performs a weapon's unique action, if it has one. If you use the shotgun frequently, bind this key to R or somewhere close to the space bar, if you've a macro for wielding.
Load-From-Attachment - Prepares a weapon's "active" attachment. In other words, the UGL-shotgun-miniflamer macro. Would recommend setting the keybind close to your Burst Fire macro.
Unload-Weapon - Does what it says on the tin. Very useful if you're good at ammo management. Would recommend binding it to the proverbial reload key, R.
Communication
say " " - Allows you to say a phrase. Bind to where ever for easy communication. Can be used for radio communication by using ( ; ) or your department/squad channel.
me " " - Allows you to perform a custom emote. Bind to where ever for easy emoting.
Examples
- say "(;) or (:h)Contact spotted." - Can be used in any situation.
- me "gives a thumbs up." - Can be used for deaf personnel or to get your point across.
- say "(;)ROCKET OUT!" - VERY USEFUL. Heavily recommend using it before firing it.
- say "(;)ROCKET OUT, BACKBLAST CLEAR!" - Alternative of macro above. Again, recommend using before firing.
- say "(;) or (:h)CONTACT SPOTTED [Chose a cardinal direction here]!" - Recommend if you want to be specific about where you've spotted an enemy, from a reference point.
- me "does the dab. Somewhere, a child loses their innocence."