Say what you will about terrain and whatnot but the real strategy is sitting in the corner with 10 rocket trucks until the enemy runs out of units/money.
sorry it happened. there's a known bug, where if the browser is closed, flash doesn't have enough time to save. we have a fix for that in the next update.
i think you should be able to see a pic of each bug/army unit/larva upgrade similar to cookie clicker where you can see the stuff you have bought (a row of farmlands after getting a cookie farm) or have the background fill up with a ant farm like thing as you progress(like a big room with queens in it that leads to a room full of eggs and larvae and a chamber of army units training/evolving to become the different units.
sorry it happened. there's a known bug, where if the browser is closed, flash doesn't have enough time to save. we have a fix for that in the next update.