I can't say I agree.
Besides, how do you propose the attackers ever make it to the second and third and forth and then fifth bases without them? The only thing left would be to see how it works with the bases that the attackers overtake would then turn to allow them to spawn there, like in Zones... but that would still require a match time of like 45 minutes to give any real expectation of the attackers ever winning.
The defenders just need to make sure they have a couple of dedicated guys with the Grinder Skill on anti-outpost duty. That easily takes care of outpost spam and forces the attackers to get more creative about how they're using them and it balances right back out.
Assault would be practically impossible to win without outposts
And I personally think themode is perfect. Hawks are basically of no use for the attacking team, and the different loadouts are very balanced in my opinion.
Not really, for an Outpost to be effective at all in Assault you have to place it in or very close to the enemy spawn point and if its that close it in range of enemy fire. You will most likely have atleast one player running the Grinder skill (Which in my opinion is the most effective skill when it comes to defending in Assault) and if not, why not use it yourself?
My problem is that people will come in and place like four outposts and if we bring down one two more pop up until the base is lost. Assault is probably my favorite mode when people aren't spamming Outposts or BRing the attacking team.