Talk:Building Depot/@comment-72.130.210.200-20130531012547/@comment-4632427-20130531020211

Believe it or not, if you're only level 20, you haven't hit the rough part yet. 25 is when Raiders start fielding War Mammoths, which are probably appropriate for players in the level 35-40 range to fight. Putting up with War Mammoths until you can build proper tanks yourself is quite a chore.

Things get *much* easier as you get higher in level, though. Heavy Tanks and Light Chem Tanks, available at level 35 and 44, respectively, both make gold farming worlds easier. Once you have the means to reliably defeat most enemy invasions in your Outpost and the Boar and Raptor groups that spawn in their respective nests, gold loses all value. You'll get so much gold from your efforts to rank units up and keep your base clear that you won't be able to spend it all if you try. Also, the Permits Office (level 30) and Large Warehouse (level 34) both relieve population pressures considerably, making it easier to build more houses and shops for faster passive income.

In the meantime, don't forget to upgrade your houses and shops to at least level 3. Upgrade your Barracks, Vehicle Factory, Hospital, and Repair Bay as much as possible - it will pay off in the long term. Promote low-level units - they can be surprisingly effective once they're higher rank, and are cheap to heal. Gunners are especially effective once their second attack is unlocked.

Also, find some friends you can trade occupations with, so you can stock up on Gears, Bars, and Chem Vials; you'll need plenty of all of them to train the units that turn the tide in your favor in PvE, making battle more profitable. If you're really lucky, you might even find someone willing to send you R6 Wimps hiding behind Sandbags for you to pick off with long-range units - they're worth great money and SP for promotions. Remember, this is a social game. It'll be a lot easier with a little help from your friends.