Back to Helldivers 2
This Super Earth Support build is specifically designed to assist your team in the new urban sprawl map. The FRV (Fast Recon Vehicle) is one of the best Stratagems for this map, but having several Helldivers run it is a waste. Designating one player to run the FRV guarantees unmatched mobility for the team, while still keeping 4/4 Stratagem slots for the remaining 3 players. This Support build does struggle with Harvesters and Stingray but will be able to dispatch every other enemy type that the Illuminate can throw your way.
The Grenade Launcher and MG-43 Sentry are integral in taking out swarms of Voteless and Overseers. Because there are plentiful amounts of ammo scattered around urban maps, this support build does not utilize a supply backpack, instead opting for a Guard Dog.
Recommended Weapon
The Breaker is capable of doing 1650 DPS, making it perfect for killing Fleshmobs (the fgiant Illuminate bullet-sponges), and Voteless.
It won’t kill Overseers because of their medium armor, which is why you’ll have the Guard Dog (which has medium pen).
We also recommend either the P-113 Verdict or P-4 Senator as your Secondary, specifically to deal with the Overseers.
Core Stratagems
Cost: 
6,000, Unlocked at Level 5.
The Grenade Launcher makes short work of swarms of Voteless. It’s great at destroying Warp Ships once the shield is down (use your Breaker), and is very ammo efficient
A four passenger lightly armored (and difficult to operate) vehicle, with a mounted Heavy Machine Gun. It allows you and your team to incredibly quickly traverse the map.
Its biggest weakness is its tendency to flip over when driving over the smallest of rocks and hills (and unlike in Halo, you can’t flip it back).
That weakness is minimized on the urban sprawl map because it’s mostly pavement, making this an absolutely incredible Stratagem to have.
Recommended Stratagems
The AX/AR-23 Guard Dog has medium armor pen, which can bring down Overseers.
It’s also great for 360 coverage, preventing Voteless from sneaking up on you.
Great tool to have equipped when your sentries are on cooldown.
The medium armor pen MG-43 Sentry makes short work of Overseers. Call it down while your Gatling Sentry is on cooldown, or call both down simultaneously if you’re about to be overrun.