Help for THE SQUAD

I'm looking to run a simple d20 system called The Squad, and I need some help making macros! All I really need is a macro that will roll a d20 plus a bonus, and then query for 1 of 3 effects, or 1 of 2 effects, depending on the macro. Any help would be much appreciated!

Hi Juniper, some additional info would be great :) Is there a community sheet available on Roll20 for this system or are you using a standard manual attributes entry method? What are the effects, how do you determine whether there are 3 or 2 available, and do they impact on the roll result? At its core you are basically doing this: [[ 1d20 + ?{Bonus|0} ]] You can make it 'prettier' by using the default template but depending on the answer to my questions there may be more we can do to lighten the load.