Keep im mind that that are the most important changes - as usual, theres also a number of small changes that I simply forgot to mention or that are not important enough :P
The biggest difference to 1.5 is the new Centurion AA Tank, some gameplay changes (many new special aillitys for infantry units, moved stealth detection to other units) and a lot of small grafic changes.
Also a huge thanks to Golan, Valdez & Alex06 for their help!
(and a special thanks to cracygdifan123 - some changes are inspired by his mod)
TWA 1.52
Bugfixes:
-fixed a grafic bug with deploying Nod MCVs
-improved the shader for Nod buildings and units
-walls do not count for the statistic anymore
-removed the "Tiberium Cloud" button from Scrin Corruptors
-renamed TiberiumFiend in TiberianFiend
General Changes/Improvements:
-Carryalls and Ox transports can now transport all types of small vehicles (they are not limited to their side specific units anymore)
-Flame Tanks & GDI/Nod Harvester can now use the "Call For Transport" abillity
-edited tooltips: "Detects Stealth" counts now as abillity
-imporved/new unit icons made by Alex06
-Surveyors, Emissarys and Explorer are now build at war factorys - their price has been changed to 800$, but they still need 16s to deploy
-all infantry special abillitys cost no money anymore and most of them have been changed/edited (find it out for yourself!)
-bonus for garrisioned buildings has been reduced - it is now 10% for vision range, attack range and rate of fire
-increased speed for missiles & disks
-various new blood effects
Global Defence Initiative:
-slightly edited all basic GDI soldier models
-"Railguns" upgrade increases the damage now by 40% (instead of 50%), price/buildtime have been reduced to 4000$/80s
-Predator armor slightly increased
-APCs can not attack air targets anymore
-New unit:
-Centurion - This new hover tank can make short work of enemy air attacks - however, it can not attack ground units
Brotherhood of Nod:
-"Novice Squad" is now known as "Novices"
-"Zealot Squad" is now known as "Disciples"
-"Shadow Team" is now known as "Shadows"
-"Attack Bikes" (or rather "Recon Bikes" since 1.51) are now known as "Raptor Bikes"
-Nods "Call For Transport" reloads in 60s now instead of 120s, price has been increased from 200$ to 300ยง
-moved steatlh detection from Raptor Bikes to Raider Buggys
-Raider Buggys can not attack air targets anymore. Their price has also been increased to 500$ since they are way better vs infantry than in the original game
-Spectres need twice as long to deploy
-Stealth Tanks fire slightly faster
-changed garrisoned cleaning values for flame weapons back to TWA 1.5 settings
-the globe of the Hand of Nod can not kill units anymore when destroyed
-"Laser Capacitors" upgrade increases the damage now by 30% (instead of 50%)
-Avatar price decreased to 2200$ (from 2400$), HP decreased to 10000 (from 12500)
Scrin:
-Explorer cannot crush infantry anymore
-stealth detection has been moved from Seeker to Gunwalker. However, the Seeker gains the "Pulse Scan" abillity to detect enemy units
-"Emergency Shielding": Upgrades small Scrin vehicles in the target area with shields. Available at Stasis Chamber
-when two Buzzer attack each other, both are killed now
Mutants:
-edited tiberium aura for Mutants
-Sentinels gain a new model and a "Explosive Charge" abillity that allows them to place TNT on enemy buildings and units
-edited the Mutant squads values a bit
As you may guess, a release is not far ahead... :>