Only Lairs and Citadels, for Citadels, go at map border. In all other maps there’s a cover design, sometimes full of traps.
I wanted open a thread on tools against RF, common who didn’t screwed up because of RF? 
Here a first draft:
- Longer range, even this has traps with crabs having a rather long range. A bit basic, and not always possible.
- Owerwatch, not perfect and there’s a part of anticipation that can go wrong, plus it can go weird if the crab can move and totally ignore your cover. Still if not, at least you’ll get shoot at with a cover stopping some bullets. if you try shoot from this cover, the RF will be against a soldier with no cover. Morever if the soldier has RF you get two shoot at alien against only one shoot from enemy.
- Control/shoot/uncontrol, but for sure now it cost an AP it’s more for some special cases.
- Destroy weapon, well if you fail the destruction you’ll cry. In fact it’s easier for a sniper, but then the range disable RF, it is more a strategic approach, disarm two crabs more than kill only one.
- Blocked los from enemy to you, the good point of RF is there isn’t a side step, so sometime you can shoot at, and RF won’t be possible.
- Sonic grenade, it’s not cheap but it’s a way.
- Invisibility (Vanish), that’s a way.
- Stealth not detected, harder or less use case but no will cost.
- Electric Reinforcement, I know it looks basic, but to open a chain of attacks against RF aliens, why not?
- Stun, typically with the cannon, but I’m not sure when stun fail, perhaps sometimes because of shield when they become stronger.
- Alien with overwatch, then no RF until the overwatch is applied. Use cases without breaking the overwatch are rare, the lotery win is get the overwatch then the RF, ok I don’t know if it’s possible to endure both, anyway an overwatch shoot will be as much nasty than a RF.
- Kill, there’s often a part of risk here, but you can have some soldiers that can one shot kill such RF crabs. If you have ways to lower HP before it can work.
- Panic, well I don’t remind if it blocks a RF, worth a check. The point is often panic is more an opportunity to manage another target before.
- Cover without side step. Cover with side step are the worse but low cover with stand up aren’t much better. There’s a few high cover not requiring side step, it’s a bit less worse in term of global damages alas it tends end with heads damages and will lost.
No, they are fun and versatile generating many combats cases/contexts. And no they aren’t that hard, including a pack of Sirens.
I think there’s a warning, but it is a bit nasty. If you move a bit the target point it switches from no damages to some damages, the no damages clue an obstacle in that path. I got recently trapped, I was wondering why not damages but a precise target point… A tree and no damages.