Hahah you wish it was still that easy...
First thing though, Traps are the best way to handle the moledogs while setting up some sentries. Only a Legendary Agile Dwarf can catch them these days, unless they take the wrong step and corner themselves...
Right
Step 1. Leather up some Quivers.
Step 2. Make a SHIT TON of bolts, if you are building above ground, destroy the forest more.
Step 3. Make the Crossbow.
Now by this stage thats all you need back in the old version. In this one... Here we go...
Step 4. Open Military Screen, press n, press c, (press N to name it something easy) Right Set up everything you need, best go with Leather Armour, Cloak, Leggings, Hood, Gloves, High Boots and Crossbow for the weapon, forget about adding a shield many people do by accident and nature, don't really bother...
Step 5. Press f, press down to the Squad of Marksmen, press c, press enter, press T to remove the green T symbol to the right. From now on, the Marksmen will use these bolts to Fight.
Step 6. Press c again, press enter. Press C to remove the Red C from the right, from now on the Marksmen will use these bolts to train.
Step 7. Define the Material needed for the Bolts, best just assign wood for both atm. After you get a good amount of Metals turned into bolts, turn the Combat Bolt Material into the Chosen Metal.
Now then, if you have an Arsenal Dwarf, and had been churning out enough bolts and all that, they should start collecting their gear. Watch over one of them to make sure.
Next to train them on off time...
Step 8. Build a Room for the Targets, built multiple Targets for saftys sake. Build rooms out of each target so that they overlap. (this may have been altered in the new set unknown and haven't tested it fully yet.) Assign each target to the Squad.
They should now gain the Target Shooting Skill, if they don't move, you ain't churning out enough bolts. I think the amount given from a single log has been reduced, and a Dwarf won't be bothered till there are 25 bolts ready for him to collect...
This should work, it did for me last for before 30.04 came out. Never had anything to shoot at that was killable, but the dwarves used the archery range... Good luck...