OK, my suggestions: a new system like battlefield series or the enemy territory quake wars series, in which u gain ranks and new 'promotions' in order to gain new upgrades. suppose you kill 10 aliens, u gain a rank, then you can upgrade with a new weapon, suppose a light saber? For aliens, you can unlock a new knid of alien species....
My suggestions: humans-
1. a new build-able structure such as a chaingun turret, which can be manned by a human.
2. Aliens get a new knid of structure which allows dretchs to aim and launch themselves at a humans(especially their heads)
3. A new type of class? Quake 4’s Strogg?
4. We definitely need some sort of new packs-big-punch weapons. Take for example, a human punch with brass knuckles that does 9 damage? my all time favourite Doom 3’s BFG9000! Or Quake 4’s dark-matter gun, which sucks your enemies into a time warp(that would be cool) Oh yeah, humans also need something like a “berserker”, which makes them “crazy” and enables them to hit with twice the force.
5. For the aliens: they need something ownaging. Something big. Something menacing. Something that can repel almost all the human attacks. If you’ve watched Alien Versus Predator, you catch a glimpse of the alien ‘Queen’- a 3 storey giant alien with a spiked tail that can pierce humans and attack them!
6. Probably also some sort of alien that can launch dretches at humans, every kill will give the launcher and the dretch 1 evo.
7. Humans can also have the role-system(for example, you can have the soldier class, the builder class, the field ops class and the covert ops class) Different range of items for different roles.
8. A new weapon, probably called the 'obliterator', similar to the luci, but fires a continuous beam of hyper intensified jet of plasma until the ammo runs out. This will probably be availabe at stage 4.
9. Hud- I expect to see some alien stuff, for example, you can see the tyrant’s claws on the hud(both of them)
10. Sensors. Humans get a new Forward Linking Infra Red system , which allows them to see through walls for 1minute- and recharging time. Aliens also adevelop a new sense such as the Magnetic Anomaly Detection sense which enables to aslo see through walls for 1 min, need recharging time.
11. Some sort of light-armoured type suit, except it is much lighter and it modifies the human's genetic system to be able to move extremely quick-like that of a charging tyrant to get out off trouble.
well... thats all I can thihnk of. You can decide the prices later.
