Did some-one have VTOLs changed from Light to Heavy armour with the 0.4 release and not state so in the release notes?
They are now almost impossible to shoot down with the early game AA (feel like they are 2-3 times as armoured as a Shiva and much better at dodging also), so they must be packing Heavy Armour. The games AA, all but the Huit Prime, is massively ineffectual against VTOLs (if piloted by anything other than a noob) they are thus immune from harm during the early-mid game ( ie. until the ERLarge Laser carrying 'mechs appear in the later game).
And; on armour levels of VTOLs vs weapons without modifiers for armour type; if you hit a Sulla with 2Gauss slugs it's Body component is brought down to ~40%, so 4 Gauss slugs on the Body = 1 dead Sulla.....seems balanced and reasonable. VTOL takes 2 Gauss to Body component and armour drops to ~65%. Also VTOLs are arguably harder to hit than a Sulla (VTOLs bob around making them harder to hit accurately, whereas with ASF you only have to calculate lead, not lead & bob).
I know that the Hawk Moth is meant to represent a flight of 4 of these vehicles....so it gets 4tons of armour if the CBT Hawkmoth has 1ton, or ~12 tons of weapons podspace if the CBT version had of 3tons (or whatever), but the armour levels vs AA weapons (class 2&5 ACs/UACs/RACs and Mguns) is ridiculous, so I assume that VTOLs are now Heavy Armour instead of Light.
The MWLL Hawkmoth is more like 12 CBT VTOLs than a flight of 4.
Anecdotal evidence; yesterday on Frostbite I reloaded my RAC Partisan 3 times from a friendly APC while engaging, and failing to destroy 3 VTOLs, who lazily hovered between 100-800m from me with absolutely no fear at all of the most expensive early game AA, they received constant damage from my RACs in 9 second bursts with almost 3 second cooldowns before waddling off home for repairs at~20% Body component remaining.
Despite 14400 RAC2 shells (3 complete reloads for the 4 guns at ~80% accuracy, so ~11500 hits) no VTOL was downed (damage received was so low that they could lazily wander off at liesure) they came back in tanks once Large Laser boats appeared. ERGO early AA is wholly inadequate at dealing with an early VTOL zerg rush....in 0.3.2 the VTOLs at least feared the AA platforms, in 0.4 they can engage and even destroy them with impunity:(
TBH being almost immune from it's natural counter & being able to capture bases (WTF is that about!?! Air Units Dominate while Ground Units Capture = Combined Arms game) and with VTOLs being as cheap as chips means that we should all learn to fly VTOLS, have 10 people start in them, donating their money to get a couple of more folks some endgame Clan Heavies and just Roflstomp game after game to prove how broken the VTOLs Pros v Cons, Cost v Reward actually is.