In Lincoln, the Hunters and Fireflies fight over the few remaining supplies left in the area that were not looted prior to the outbreak, using the red loot boxes scattered around the map. At the start of the match, the Hunters will spawn at the D & H Automotive Repair Shop and the Fireflies will spawn near the church.
As you'll probably be fighting in the buildings for most of the time, a short range weapon, such as the Shorty or Shotgun are recommended choices. There are numerous cars outside the buildings, meaning you can use them as cover from the medium to long range weapons. Sammy and Vivian's Dinner offer good spots for sniping, but your view is limited since they don't cover a lot of ground. If you choose to be a sniper, don't stay in one spot for too long, as an enemy can easily kill you, especially if they have an upgraded melee weapon or a shiv.
Try to place Nail Bombs near access points so that the ticking will give you a chance to react. In the middle of the diner is a makeshift bridge to the Town Hall. Sprint if you want to cross, as you are very exposed to the enemy. One of many defensible locations is the Town Hall, and since it has a loot box, you can constantly be stocked with supplies. Plant Nail Bombs near access points and have another teammate with you, so both of you can easily defend the area. The Town Hall also has multiple escape routes if you are ambushed, so you can easily escape.