Surviving the zombie plagued streets of London in ZombiU is a hard task to say the least. Zombies are out to get you, and they will not stop until they get your brains. Fighting these zombies with orthodox weaponry is possible but with stock only guns you can be sure the zombies will hand it to you most of the time.
To really get things started and give these pesky zombies a solid butt-kicking you need that extra “omph” in your arsenal. This means that you need to have modded and upgraded weapons, which deliver that extra fire power you require to survive.
This guide will help you find different upgrades for your weapons that suit your play style. If you want to get the most out of your weapon, continue reading. For more help on ZombiU, read our Weapons and Items Locations Guide.
ZombiU Weapon Upgrades
Basically, these upgrades increase the size of your magazine meaning you can carry more bullets at any given time. However, keep in mind this kind of upgrade is not compatible with the double barrel shotgun or the hunting crossbow.
These upgrades increase the damage output of your weapon. This means you can kill enemies with fewer bullets. These kinds of upgrades can go along with any sort of ranged weapon.
Fire Speed Upgrades
These upgrades decrease the time required for your weapon to fire bullets. This means your gun fires at a faster rate. It is applicable with any ranged weapon except the hunting crossbow.
These upgrades increase the accuracy of your guns over a long range. They can be attached to any ranged weapon. Now that we have discussed the types of upgrades, let’s talk about how we can utilize them to their max potential.
Apart from the double barrel shotgun and the hunting crossbow, all weapons in ZombiU are totally customizable. However, the main question is do u tinker with all your guns or the mod the hell out of a single gun making it a weapon of mass destruction? Well, the simple answer to that question is that you should upgrade at least two weapons of different type.
A modded pistol is a must have. Now depending on your play style, you should choose the second weapon to upgrade. If you like to get in the center of all things, then you should upgrade your shotgun otherwise a modded rifle is good to pick off foes from a safe distance.
Furthermore, do not waste your upgrades on the guns you barely use. Save these upgrades for the types of weapons you actually prefer. Below we have listed all the upgrades found in a particular location. We will start with the safe house.
Firing Speed Upgrade 1: Located in the small storage room near to the exit to the brick lane market.
Firing Speed Upgrade 2: Scan and hack the door in the lower mezzanine red storage to reach the hidden platform area; the upgrade is at the tunnel junction.
Spread Upgrade 1: Loot dropped by an enraged super zombie near the entrance to the Victoria Memorial on the tube train.
Spread Upgrade 2: It is located in the tube station passage going to St.George’s Church.
Brick Lane Markets (Hanbury Green and Market Street)
Capacity Upgrade 1: Situated in the small connecting yard behind the gate leading to the Brick Lane flats.
Capacity Upgrade 2: Found in the backyard. You can get there with a help of a C4, you can also find a Dee’s Letter here.
Firepower Upgrade 1: Located in the locked storage shed adjacent to the manhole.
Firepower Upgrade 2: Found in the Hanbury Green Alley can be looted from an evolved super zombie.
Brick Lane Markets (Supermarket)
Spread Upgrade 3: It is located behind the strewn shelving inside the supermarket.
Victoria Memorial (Green Park)
Firepower Upgrade 3: Situated in the Armory, accessed via the keycard during mission nine.
Spread Upgrade 4: It is located in the knee deep waters in the main sewer corridor. It can be looted of the evolved super zombie there.
Firing Speed Upgrade 3: Situated in the small drainage to the left of the drainage entrance gate.
Firing Speed Upgrade 4: It can be found in the connecting chamber going to the Tower Of London.
Victoria Memorial (Palace Gates)
Firepower Upgrade 4: It is in the container with ambushing infected, just before the ambulances.
Fire Speed Upgrade 5: It is situated in the container in the chain link fence area.
Palace Underground (Royal Bunker)
Capacity Upgrade 3: Situated in the hub chamber, opposite to the entrance stairs.
Capacity Upgrade 4: It is placed on a shelf, in a storage area under the stairs.
Capacity Upgrade 5: It is located inside a locked room with a Ravens symbol to decipher.
Firing Speed Upgrade 5: Can be looted of an enraged super zombie during the last bit of mission 15.
Firing Speed Upgrade 6: Situated in the omega barracks just behind the C4 trash pile.
Palace Underground (Queen’s Quarter)
Spread Upgrade 5: Situated behind the open vault door.
Buckingham Palace (Interior)
Firepower upgrade 6: It is located in the crawl space between the fiery state room and the long blue corridor.
Firepower Upgrade 7: It can be found in the hallway and the stairs area. It can be looted off a super zombie there.
Buckingham Palace (Kitchens)
Spread Upgrade 6: It is among the scattered trolleys in the kitchens pantry.
Fire Speed Upgrade 7: Situated in the tiny storage space which can be accessed by blowing up the C4 blocking the entrance.
Brick Lane Flats (Old Brick Warehouses)
Capacity Upgrade 6: It is located on the top floor office behind the raven’s keypad door.
Spread Upgrade 7: Situated behind the locked door in a small storage room off the warehouse loading bay.
Firing Speed Upgrade 8: It can be looted off an enraged super zombie behind the C4 trash wall. It is in the second warehouse.
Brick Lane Flats (Ron Freedman’s Flat)
Firepower Upgrade 8: Situated in the Freedman’s office. It is placed inside the safe.
Tower of London (Tower Pier)
Spread Upgrade 8: It is on the tugboat. You can get to it with Dee’s letter#6 and a M4 shotgun.
Firing Speed Upgrade 8: It can be looted of an enraged super zombie on the tugboat.
Tower of London (Bloody Tower)
Capacity Upgrade 7: Situated in the water dungeon on a small alcove.
Spread Upgrade 9: It is located in the corner of Raven’s hidden chamber. It is held by a suit of armor.
Spitalfields Green (Quaker Park)
Capacity Upgrade 8: It is located behind the metal fencing. It is by the a corpse with Dee’s letter, across from the park.
Firepower Upgrade 9: Can be looted of the enraged super zombie in the park.
Speed Upgrade 10: In the storage room behind the C4 wall. It can be accessed by the hole in the brick wall in one corner of the park.
Firing Speed Upgrade 10: Situated on the upper balcony, which is overlooking the alleyways below.
Spitalfields Green (Shoreditch Petrol Station)
Capacity Upgrade 9: It can be found behind the gate near the petrol station.
Firepower Upgrade 10: It is located in the hallway behind the black light coded keypad door. It is accessed via the ladder.
Baconfields (Darwin Yard)
Capacity Upgrade 10: It is located in the locked shed. In there is Magnum pistol and Dee’s letter# 17 too.
Spread Upgrade 11: It is in the connecting rooms close to the manhole.
Spread Upgrade 12: Can be looted of an enraged super zombie in the wasteland.
Firing Speed Upgrade 11: It is found in the bushes below the massive motorway pillar. It is near the huts.
Baconfields (Brick Lane Community Nursery)
Firepower Upgrade 11: It is situated in the lower basement keypad storage room. There is also the UMP 45 and C4 as well.
St. George’s Church (Catacombs)
Capacity Upgrade 11: Can be looted off an enraged super zombie in the main corridor.
Spread Upgrade 13: Situated in the toilets behind the C4 trash pile.
Firing Speed Upgrade 12: It is located in the small keypad storage room near the CCTV junction box.
St. George’s Church (Crypt)
Firepower Upgrade 12: It is placed in the corner of the waterlogged lower area.
St. George’s Church (Arena Courtyard)
Firepower Upgrade 13: Situated behind the locked gate close to the exit ladder.