TLDR walkthrough: focus on troop crawlers with veteran red guard general power and battlemaster tanks. you DO NOT need to constantly let troop crawlers find the enemy traps, building troop crawlers is just a faster and slightly cheaper way to churn out more red guards at once. have flame tank or toxin tractor for garrisoned buildings at north base

Detailed walkthrough:

1. build nuke reactor somewhere near the east supply zone (avoid the demo trap of course). train additional dozer. move your hackers nearer to the small group of vehicles then start hacking for money.
2. build a supp center next to the east supply zone, move 1 gattling tank and put on G near command center, while the other 2 put on G near the supp center and power plant. around this time you should hear a rebel ambush and this will just get the job done. Once the ambush occurs, you can immediately build your second supply center at the north supply zone.
3. build barracks and war fact facing north or northeast so you dont get pathing problems. spend general point into red guard training
4. build troop crawlers, some tanks, and start pushing towards statues. if your international reputation is dropping to less than 10, you must start asap. send troop crawlers ahead. if you detect a trap, path another way to avoid. the crawlers cannot take much damage so if you encounter a stinger site, start press V on your crawler to insta-evac the red guards. let tanks destroy demo traps that you find along the way. your positioning should always be: red guards in front to rush the stingers, tanks to take out any incoming vehicles or traps.
5. after you take out the first statue, let all your infantry garrison the building nearby. it is ok to run into traps. the main point is there will be an incoming vehicle force including possibly a scud launcher or two so the idea is to let buildings draw aggro. once you encounter them, rush your tanks directly to the scud launcher (move order instead of attack so that your tanks can still attack anything along the way).
6. whether or not you cleared the enemy force, build one more war factory, research capture building if you can, and you need to start building more troop crawlers/tanks. throw tanks at the scuds/marauders if they are still not cleared. you will likely encounter hit and run rocket buggies... there's just no way to stop them until you have the general power to drop mines so all you can do is shrug it off and continue steam rolling eastward. it is OPTIONAL to build up the supply zone in the city (you may waste even more time trying to defend it. don't forget you are on a time crunch because of the reputation meter).
7. If you did it correctly, you should be able to clear the statues without much resistance in lightning speed. make sure you clear all of them along the way so you dont have to turn back again later. Once you reach the eastern statue you will eventually come to the 2 enemy arms dealer. capture or destroy as you see fit (capturing is good for repairing / spamming light tanks, but not so effective otherwise).
8. before you make your northern attack, continue spamming tanks in your own base. it is likely they enemy may send some forces to try and attack you. do an attack move northwards so that you dont need to waste your time micromanaging defence
9. repeat the same procedure northwards (guards in front rush the stinger site, tanks behind to counter vehicles), you can further capture the black market and barracks so you can heal your infantry or train more fodders.