Building Tier 8 Units

You will need:

*The Espionage HQ
*Cheat Engine,get it here: http://www.cheatengine.org/

1. On the Espionage HQ select the 'units tier 7-8' spy,click on 'equip' spy,click on 'finish' then click on 'send':

2.Visit a neighbor,and clone a tier 8 unit,in this example I'm using the Crave Mk III (UC28):

3.Go back to your empire

4.Open the inventory and select a unit tier 7-8 (I will use a Voodoo Gunship code UB62),click on it as if you were to place it,but DO NOT place it yet

5.Open Cheat Engine,find the process your web browser is using ('chrome.exe' for Chrome,'plugin container' for firefox),change 'value type' to 'text' (string) and scan for the code of the unit you're placing (UB62):

6.Change the Voodoo Gunship code (UB62) to the one of the Crave Mk III (UC28):

7.Now place the unit on a depot,reload and that's it:

Codes:

*Tarantulus_+1050_UN08
*Arachnoid_+1200_UM95
*Super Sharman Battleship MkIII_+1360_UW14
*Super Sygnus Carrier_+1340_UU86
*Super Alpha Tiger Carrier_+1100_UT85
*Super Arnold K90 Submarine_+940_UT84
*Super AlvinE36 Submarine_+950_UT80
*Super DuneP9 Copter_+980_UB79
*Super Atlas D3 Carrier_+990_UT76
*Super Altovar Battleship_+950_UT75
*Super Varun UUV2 Submarine_+930_UT69
*Super soldier_+1200_UN28
*SpecOps Roger M77 Artillery III_+1100_UN45
*SpecOps Trojan Infantry III_+1100_UN42
*SpecOps Piranha Battleship_+1100_UT77
*SpecOps Lynna Copter III_+1100_UC09
*SpecOps PierceC3 fighter III_+1100_UC06
*SpecOps Franklin B2 Battleship III_+1100_UU16
*SpecOps Sea Hive Carrier III_+1200_UU01
*SpecOps Wombat Tank III_+1200_UN19
*SpecOps Ankit UUV Patrol mk III_+1200_UU53
*SpecOps Grimm D7 Carrier mk III_+1200_UU59
*SpecOps Mermaid Assault_+1300_UU80
*SpecOps Anubis Infantry mk III_+1200_UN71
*Specops Behemoth Artillery mk III_+1200_UN78
*SpecOps Dragon Infantry_+1300_UN87
*SpecOps Djinn fighter III_+1300_UC71
*SpecOps Midnight Bomber_+1300_UC81
*SpecOps Armen Copter mk III_+1200_UC27
*SpecOps Racoon Copter mk III_+1200_UC60
*SpecOps Platana Battleship mk III_+1300_UU65
*SpecOps Razor Artillery_+1340_UO07
*SpecOps Shan T-20 Copter_+1350_UD06
*SpecOps UAV Drone_+1360_UD18
*SpecOps Krestal Fighter_+1350_UD07
*SpecOps Razor Fighter_+1350_UC94
*SpecOps Sleeper Artillery_+1360_UO37
*SpecOps Whirpool Submarine_+1350_UU95
*Lightning StrikerUIV II Infantry_+1370_UO25
*Lightning Krueger Infantry_+1350_UO10
*Lightning Raclon Carrier_+1100_UU99
*Elite Oton Battleship mk IV_+1350_UU72
*Potter tank_+1250_UN60
*The Crave Mk III_+1240_UC28
*Lucky Shot Snake_+1350_UN99
*The Bird Decimator_+2500_UN98
*Advanced Mountain Fighter_+2500_UN96
*The bird Killer_+1310_UN97
*Sign Bomber mk III_+1350_UC63
*Raclon Carrier_+1220_UU83
*Atler Fighter_+1380_UC78
*Xcraft Copter_+1340_UC91
*Transformer Fighter_+1100_UD22
*Vetral Copter_+1170_UD08
*Kriple Infantry_+1110_UO40
*Transformer Tank_+1360_UO41
*Blazing Hyena Tank_+1350_UO21
*Transformer Gunboat_+1440_UW11
*Rave C43 Copter_+1250_UD27,UD28,UD29,UD30

You can't use this trick to get Vertex or Crimson Hand units

NOTE: for those of you still having problems finding the right chrome/firefox process,there's a way of doing this cheat without using Cheat Engine at all:

1.clone the unit you want
2.place it on a fight
3.pause the fight,and leave it that way
4.after 24 hours the unit will appear in your inventory
5.now finish the fight and start all over again

Also read:

How to know your zynga Id
Hack Tier 9 Units
How To Move Units to The Inventory
Sending Nukes Using Cheat Engine

And I want to give a big thank you to George Roberts and Noli Yabut