Okay, I can now firmly say the game is bloody awesome and well worth bying if your into quick fire strategy.
For those who are having trouble I'll try and explain how things work.
The object of the game is obviously to destroy enemies, each wave you have a number of crates and a number of targets, which is why it'll say "crates 3, targets 1" or something like that.
Double tapping on either will automatically face your tank towards it, so the next thing is what your tank is currently pointed at with the distance, EG "weapon cache 120" or "infantry 492" (I'll assume these distances are in meters, though the game just gives the number).
You then have buttons to go forward or reverse which will move your tank 100 meters towards or away from the current crate/enemy, and a report on the status of your enemy, EG "enemy in range" or "enemy near."
If the enemy is in range of your current weapon you can then try to blast them. You do this by changing your elevation, this is a number which will change according to how you tilt your phone, and then double tapping on the elevation button to fire.
From what I've gathered, 45 in optimum conditions will get them at max range of your weapon, if they're closer you need to change elevation obviously.
After this is a log of each turn, which you can swipe through to hear the most recent thing, which tells you if you use fuel (you use one fuel each move), get shot at by the enemy and lose armour, or shoot at the enemy and either miss, do damage or destroy them.
If you miss the enemy, you will be told the elevation of your shot and by how much it missed, EG 32 over 86 means your 84 metres over and probably need a lower elevation to get the enemy. You don't seem to need to be %100 dead accurate, but it helps.
Bare in mind, the log continually updates, so the log of previous turns will also be written to the screen.
At the bottom are stats for your tank, the wind speede, your percengages of armour, fuel and shells left. If you tap on your percentage of shells you can enter the shop.
here you can change your current type of weapon, this is handy to do since you have several different shell types with different ranges, and if the enemy is further away its better to blast them with a long distance shell than waste fuel and armour moving towards them. You'll be told "selected" to show what type of shells your currently using, and will be told the percentage and range of each shell type.
You can also buy upgrades and extra items with the stars you win for completing waves, you get more stars with one shot kills and by using different types of shells.
In terms of sound, you seem to get sounds when the enemy fire at you and do damage, obviously when you move and fire, and some wind sounds, the really important sound though is the ratcheting sound when you tilt your Iphone. This indeed is the one miner access issue, its the only way to tell your elevation is moving. Vo will speak your elevation when you first swipe onto the number,but won't report when it changes, so you'll have to either swipe, then tilt your phone, then hold steady while you swipe back to check the number, or just rely on the clicks to calculate what you want. Fortunately, you don't need to be too exact.
the two things I haven't worked out yet, are firstly, the relative spaces of how targets and crates work, EG when you can safely pick crates up and be out of range of an enemy, and secondly, how windspeed affects your shooting and what happens at higher elevations. Mostly my tactics so far have involved finding a shell at the correct range of the enemy, then blasting away at 45 elevation, or maybe a bit less if the target is a wee bit closer.
I'm also not sure exactly which type of shell gets refilled if you run over a weapon crate either.
I think this one will be lots of fun, especially with the randomly generating levels, and even more if extra stuff can be added to the game, EG obstacles and bunkers to get around, or vantage points to increase your elevation, as well as different missions or enemy types, either way, happy blasting!
Our souls with high music ringing; O men! It must ever be
That we dwell in our dreaming and singing, A little apart from ye. (Arthur O'Shaughnessy 1873.)