Now I understand the low reviews

Revised review. Got to loving this game until I got to Medium difficulty in the low-mid upper levels. Just deleted it now, forever retired.
In this difficulty:
- after initial purchase, I bought the Battle Chest with game me 500 gold. Used it in replaying the Basic & No Fog difficulties, but its now no longer available for the medium difficulty which is quite BS since theyre all the same maps!
- All maps are the same, but dont remember every other map being a "survival time period" map (which is real tedious with your reduced gold & limited units & the AIs massive starting force & unlimited gold), thought there were more "destroy the HQ" maps.
- you start with lower amount of Oil Rigs than before or same as enemy AI, even with the same the AI will always generate more gold per turn (eg. AI has 4 Rigs but generates 1000 to 1800 per turn - I added up the costs per turn once I cleared the fog & counted the Rigs once I dominated the field; the AIs gold increases towards the end).
- the AI starts with 2-3 times more units (eg. 30+ compared to your 7 - that was the last lvl I played) & advances immediately. No longer see the AI using scouts, however your starting units are wasted on the weaker units & you still have to use scouts since the rest of your units only reveal the surrounding single adjacent tile.
- AI units are stronger regardless if it hasnt upgraded any "offensive" units. On the other hand, I either maxed out or upgraded my damage inflicted or shields on my most used offensive units, but its as if all my upgrades are now longer in effect.

Oz893 about Great Big War Game